7.5 – Radical Expressions
Radical
Radical – radical symbol
Radical – radical symbol =
Recall:
Radical – radical symbol = Recall: Ex. 1 Simplify
Radical – radical symbol = Recall: Ex. 1 Simplify = ____ √ 3·3·3
Radical – radical symbol = Recall: Ex. 1 Simplify = 2 ____ √ 3·3·3
Radical – radical symbol = Recall: Ex. 1 Simplify = 2 ____ √ 3·3·3
Radical – radical symbol = Recall: Ex. 1 Simplify = 2 √ 3·3·3 √ 3·3 · √ 3
Radical – radical symbol = Recall: Ex. 1 Simplify = 2 √ 3·3·3 √ 3·3 · √ 3 3 · √ 3
Radical – radical symbol = Recall: Ex. 1 Simplify = 2 √ 3·3·3 √ 3·3 · √ 3 3 √ 3
Ex. 2 Simplify √ 16p 8 q 7
√ 16p 8 q 7 =
Ex. 2 Simplify √ 16p 8 q 7 √ 16p 8 q 7 = √ 16
Ex. 2 Simplify √ 16p 8 q 7 √ 16p 8 q 7 = √ 16 · √ p 8
Ex. 2 Simplify √ 16p 8 q 7 √ 16p 8 q 7 = √ 16 · √ p 8 · √ q 7
Ex. 2 Simplify √ 16p 8 q 7 √ 16p 8 q 7 = √ 16 · √ p 8 · √ q 7 = √4 2
Ex. 2 Simplify √ 16p 8 q 7 √ 16p 8 q 7 = √ 16 · √ p 8 · √ q 7 = √4 2 ·√(p 4 ) 2
Ex. 2 Simplify √ 16p 8 q 7 √ 16p 8 q 7 = √ 16 · √ p 8 · √ q 7 = √4 2 ·√(p 4 ) 2 ·√(q 6 )q
Ex. 2 Simplify √ 16p 8 q 7 √ 16p 8 q 7 = √ 16 · √ p 8 · √ q 7 = √4 2 ·√(p 4 ) 2 ·√(q 6 )q = √4 2 ·√(p 4 ) 2 ·√(q 3 ) 2 ·q
Ex. 2 Simplify √ 16p 8 q 7 √ 16p 8 q 7 = √ 16 · √ p 8 · √ q 7 = √4 2 ·√(p 4 ) 2 ·√(q 6 )q = √4 2 ·√(p 4 ) 2 ·√(q 3 ) 2 ·q = √4 2 ·√(p 4 ) 2 ·√(q 3 ) 2 ·√q
Ex. 2 Simplify √ 16p 8 q 7 √ 16p 8 q 7 = √ 16 · √ p 8 · √ q 7 = √4 2 ·√(p 4 ) 2 ·√(q 6 )q = √4 2 ·√(p 4 ) 2 ·√(q 3 ) 2 ·q = √4 2 ·√(p 4 ) 2 ·√(q 3 ) 2 ·√q = 4 · p 4 · q 3 ·√q
Ex. 2 Simplify √ 16p 8 q 7 √ 16p 8 q 7 = √ 16 · √ p 8 · √ q 7 = √4 2 ·√(p 4 ) 2 ·√(q 6 )q = √4 2 ·√(p 4 ) 2 ·√(q 3 ) 2 ·q = √4 2 ·√(p 4 ) 2 ·√(q 3 ) 2 ·√q = 4 · p 4 · q 3 ·√q = 4p 4 q 3 √q
Ex. 3 Simplify each expression. 6√ 9n 2 · 3√ 24n 33
Ex. 3 Simplify each expression. 6√ 9n 2 · 3√ 24n 33
Ex. 3 Simplify each expression. 6√ 9n 2 · 3√ 24n 6 · 3 33
Ex. 3 Simplify each expression. 6√ 9n 2 · 3√ 24n 6 · 3 33
Ex. 3 Simplify each expression. 6√ 9n 2 · 3√ 24n 6 · 3 · √ 9n 2 · 24n 33 3
Ex. 3 Simplify each expression. 6√ 9n 2 · 3√ 24n 6 · 3 · √ 9n 2 · 24n 18 · √ 3 2 n 2 · 3·8·n
Ex. 3 Simplify each expression. 6√ 9n 2 · 3√ 24n 6 · 3 · √ 9n 2 · 24n 18 · √ 3 2 n 2 · 3·8·n
Ex. 3 Simplify each expression. 6√ 9n 2 · 3√ 24n 6 · 3 · √ 9n 2 · 24n 18 · √ 3 2 n 2 · 3·8·n
Ex. 3 Simplify each expression. 6√ 9n 2 · 3√ 24n 6 · 3 · √ 9n 2 · 24n 18 · √ 3 2 n 2 · 3·8·n 18 · √ 3 2 ·n 2 ·3·2 3 ·n
Ex. 3 Simplify each expression. 6√ 9n 2 · 3√ 24n 6 · 3 · √ 9n 2 · 24n 18 · √ 3 2 n 2 · 3·8·n 18 · √ 3 2 ·n 2 ·3·2 3 ·n
Ex. 3 Simplify each expression. 6√ 9n 2 · 3√ 24n 6 · 3 · √ 9n 2 · 24n 18 · √ 3 2 n 2 · 3·8·n 18 · √ 3 2 ·n 2 ·3·2 3 ·n 18 · √ 3 3 ·n 3 ·
Ex. 3 Simplify each expression. 6√ 9n 2 · 3√ 24n 6 · 3 · √ 9n 2 · 24n 18 · √ 3 2 n 2 · 3·8·n 18 · √ 3 2 ·n 2 ·3·2 3 ·n 18 · √ 3 3 ·n 3 ·
Ex. 3 Simplify each expression. 6√ 9n 2 · 3√ 24n 6 · 3 · √ 9n 2 · 24n 18 · √ 3 2 n 2 · 3·8·n 18 · √ 3 2 ·n 2 ·3·2 3 ·n 18 · √ 3 3 ·n 3 ·
Ex. 3 Simplify each expression. 6√ 9n 2 · 3√ 24n 6 · 3 · √ 9n 2 · 24n 18 · √ 3 2 n 2 · 3·8·n 18 · √ 3 2 ·n 2 ·3·2 3 ·n 18 · √ 3 3 ·n 3 · · √ 3 3 ·√ n 3 ·√
Ex. 3 Simplify each expression. 6√ 9n 2 · 3√ 24n 6 · 3 · √ 9n 2 · 24n 18 · √ 3 2 n 2 · 3·8·n 18 · √ 3 2 ·n 2 ·3·2 3 ·n 18 · √ 3 3 ·n 3 · · √ 3 3 ·√ n 3 ·√ · 3 · n ·
Ex. 3 Simplify each expression. 6√ 9n 2 · 3√ 24n 6 · 3 · √ 9n 2 · 24n 18 · √ 3 2 n 2 · 3·8·n 18 · √ 3 2 ·n 2 ·3·2 3 ·n 18 · √ 3 3 ·n 3 · · √ 3 3 ·√ n 3 ·√ · 3 · n · 2 18 · 3 · 2 · n
Ex. 3 Simplify each expression. 6√ 9n 2 · 3√ 24n 6 · 3 · √ 9n 2 · 24n 18 · √ 3 2 n 2 · 3·8·n 18 · √ 3 2 ·n 2 ·3·2 3 ·n 18 · √ 3 3 ·n 3 · · √ 3 3 ·√ n 3 ·√ · 3 · n · 2 18 · 3 · 2 · n 108n
Ex. 4 Simplify each expression. a. 2√ √ √ 48
Ex. 4 Simplify each expression. a. 2√ √ √ 48 2√ 2·2·3 - 3√ 3·3·3 + 2√ 2·2·2·2·3
Ex. 4 Simplify each expression. a. 2√ √ √ 48 2√ 2·2·3 - 3√ 3·3·3 + 2√ 2·2·2·2·3 2√ 2 2 ·3 - 3√ √ 2 4 ·3
Ex. 4 Simplify each expression. a. 2√ √ √ 48 2√ 2·2·3 - 3√ 3·3·3 + 2√ 2·2·2·2·3 2√ 2 2 ·3 - 3√ √ 2 4 ·3 2√ 2 2 ·3 - 3√ √ 2 2 ·2 2 ·3
Ex. 4 Simplify each expression. a. 2√ √ √ 48 2√ 2·2·3 - 3√ 3·3·3 + 2√ 2·2·2·2·3 2√ 2 2 ·3 - 3√ √ 2 4 ·3 2√ 2 2 ·3 - 3√ √ 2 2 ·2 2 ·3 2·2·√3 - 3·3·√3 + 2 ·2·2· √3
Ex. 4 Simplify each expression. a. 2√ √ √ 48 2√ 2·2·3 - 3√ 3·3·3 + 2√ 2·2·2·2·3 2√ 2 2 ·3 - 3√ √ 2 4 ·3 2√ 2 2 ·3 - 3√ √ 2 2 ·2 2 ·3 2·2·√3 - 3·3·√3 + 2 ·2·2· √3 4√ 3 - 9√ 3 + 8√ 3
Ex. 4 Simplify each expression. a. 2√ √ √ 48 2√ 2·2·3 - 3√ 3·3·3 + 2√ 2·2·2·2·3 2√ 2 2 ·3 - 3√ √ 2 4 ·3 2√ 2 2 ·3 - 3√ √ 2 2 ·2 2 ·3 2·2·√3 - 3·3·√3 + 2 ·2·2· √3 4√ 3 - 9√ 3 + 8√ 3
Ex. 4 Simplify each expression. a. 2√ √ √ 48 2√ 2·2·3 - 3√ 3·3·3 + 2√ 2·2·2·2·3 2√ 2 2 ·3 - 3√ √ 2 4 ·3 2√ 2 2 ·3 - 3√ √ 2 2 ·2 2 ·3 2·2·√3 - 3·3·√3 + 2 ·2·2· √3 4√ 3 - 9√ 3 + 8√ 3 -5√ 3 + 8√ 3
Ex. 4 Simplify each expression. a. 2√ √ √ 48 2√ 2·2·3 - 3√ 3·3·3 + 2√ 2·2·2·2·3 2√ 2 2 ·3 - 3√ √ 2 4 ·3 2√ 2 2 ·3 - 3√ √ 2 2 ·2 2 ·3 2·2·√3 - 3·3·√3 + 2 ·2·2· √3 4√ 3 - 9√ 3 + 8√ 3 -5√ 3 + 8√ 3
Ex. 4 Simplify each expression. a. 2√ √ √ 48 2√ 2·2·3 - 3√ 3·3·3 + 2√ 2·2·2·2·3 2√ 2 2 ·3 - 3√ √ 2 4 ·3 2√ 2 2 ·3 - 3√ √ 2 2 ·2 2 ·3 2·2·√3 - 3·3·√3 + 2 ·2·2· √3 4√ 3 - 9√ 3 + 8√ 3 -5√ 3 + 8√ 3 3√ 3
b. (5√ 3 – 6)(5√ 3 +6)
5√ 3(5√ 3 +6)
b. (5√ 3 – 6)(5√ 3 +6) 5√ 3(5√ 3 +6)
b. (5√ 3 – 6)(5√ 3 +6) 5√ 3(5√ 3 +6) – 6(5√ 3 +6)
b. (5√ 3 – 6)(5√ 3 +6) 5√ 3(5√ 3 +6) – 6(5√ 3 +6)
b. (5√ 3 – 6)(5√ 3 +6) 5√ 3(5√ 3 +6) – 6(5√ 3 +6) 5√ 3·5√ 3
b. (5√ 3 – 6)(5√ 3 +6) 5√ 3(5√ 3 +6) – 6(5√ 3 +6) 5√ 3·5√ 3
b. (5√ 3 – 6)(5√ 3 +6) 5√ 3(5√ 3 +6) – 6(5√ 3 +6) 5√ 3·5√ 3 + 5√ 3·6
b. (5√ 3 – 6)(5√ 3 +6) 5√ 3(5√ 3 +6) – 6(5√ 3 +6) 5√ 3·5√ 3 + 5√ 3·6
b. (5√ 3 – 6)(5√ 3 +6) 5√ 3(5√ 3 +6) – 6(5√ 3 +6) 5√ 3·5√ 3 + 5√ 3·6 – 6·5√ 3
b. (5√ 3 – 6)(5√ 3 +6) 5√ 3(5√ 3 +6) – 6(5√ 3 +6) 5√ 3·5√ 3 + 5√ 3·6 – 6·5√ 3
b. (5√ 3 – 6)(5√ 3 +6) 5√ 3(5√ 3 +6) – 6(5√ 3 +6) 5√ 3·5√ 3 + 5√ 3·6 – 6·5√ 3 – 6·6
b. (5√ 3 – 6)(5√ 3 +6) 5√ 3(5√ 3 +6) – 6(5√ 3 +6) 5√ 3·5√ 3 + 5√ 3·6 – 6·5√ 3 – 6·6 5·5√ 3·√ 3 + 5·6√ 3 – 6·5√ 3 – 6·6
b. (5√ 3 – 6)(5√ 3 +6) 5√ 3(5√ 3 +6) – 6(5√ 3 +6) 5√ 3·5√ 3 + 5√ 3·6 – 6·5√ 3 – 6·6 5·5√ 3·√ 3 + 5·6√ 3 – 6·5√ 3 – 6·6
b. (5√ 3 – 6)(5√ 3 +6) 5√ 3(5√ 3 +6) – 6(5√ 3 +6) 5√ 3·5√ 3 + 5√ 3·6 – 6·5√ 3 – 6·6 5·5√ 3·√ 3 + 5·6√ 3 – 6·5√ 3 – 6·6
b. (5√ 3 – 6)(5√ 3 +6) 5√ 3(5√ 3 +6) – 6(5√ 3 +6) 5√ 3·5√ 3 + 5√ 3·6 – 6·5√ 3 – 6·6 5·5√ 3·√ 3 + 5·6√ 3 – 6·5√ 3 – 6·6
b. (5√ 3 – 6)(5√ 3 +6) 5√ 3(5√ 3 +6) – 6(5√ 3 +6) 5√ 3·5√ 3 + 5√ 3·6 – 6·5√ 3 – 6·6 5·5√ 3·√ 3 + 5·6√ 3 – 6·5√ 3 – 6·6 25√ √ 3 – 30√ 3 – 36
b. (5√ 3 – 6)(5√ 3 +6) 5√ 3(5√ 3 +6) – 6(5√ 3 +6) 5√ 3·5√ 3 + 5√ 3·6 – 6·5√ 3 – 6·6 5·5√ 3·√ 3 + 5·6√ 3 – 6·5√ 3 – 6·6 25√ √ 3 – 30√ 3 – 36
b. (5√ 3 – 6)(5√ 3 +6) 5√ 3(5√ 3 +6) – 6(5√ 3 +6) 5√ 3·5√ 3 + 5√ 3·6 – 6·5√ 3 – 6·6 5·5√ 3·√ 3 + 5·6√ 3 – 6·5√ 3 – 6·6 25√ √ 3 – 30√ 3 – 36 25·3
b. (5√ 3 – 6)(5√ 3 +6) 5√ 3(5√ 3 +6) – 6(5√ 3 +6) 5√ 3·5√ 3 + 5√ 3·6 – 6·5√ 3 – 6·6 5·5√ 3·√ 3 + 5·6√ 3 – 6·5√ 3 – 6·6 25√ √ 3 – 30√ 3 – 36 25·3
b. (5√ 3 – 6)(5√ 3 +6) 5√ 3(5√ 3 +6) – 6(5√ 3 +6) 5√ 3·5√ 3 + 5√ 3·6 – 6·5√ 3 – 6·6 5·5√ 3·√ 3 + 5·6√ 3 – 6·5√ 3 – 6·6 25√ √ 3 – 30√ 3 – 36 25·3+ 0 – 36
b. (5√ 3 – 6)(5√ 3 +6) 5√ 3(5√ 3 +6) – 6(5√ 3 +6) 5√ 3·5√ 3 + 5√ 3·6 – 6·5√ 3 – 6·6 5·5√ 3·√ 3 + 5·6√ 3 – 6·5√ 3 – 6·6 25√ √ 3 – 30√ 3 – 36 25·3 – – 36
b. (5√ 3 – 6)(5√ 3 +6) 5√ 3(5√ 3 +6) – 6(5√ 3 +6) 5√ 3·5√ 3 + 5√ 3·6 – 6·5√ 3 – 6·6 5·5√ 3·√ 3 + 5·6√ 3 – 6·5√ 3 – 6·6 25√ √ 3 – 30√ 3 – 36 25·3 – – 36 39