3. Roots Lesson 1-8

4. square root – one of the given number’s two equal factors 2 is the square root of 4 because 2² = 4 15 is the square root of 225 because 15² = 225 perfect square – a rational number whose square root is a whole number 196 is a perfect square because its square root is 14 81 is a perfect square because its square root is 9

5. radical sign – the symbol used to indicate a positive square root, √. cube root – one of three equal factors of a number, written as ∛ 3 is the cube root of 27 because 3³ = 27 perfect cube – a rational number whose cube root is a whole number 64 is a perfect cube because its cube root is 4 64 = 4 · 4 · 4 = 4³

12. p 75 #1-41 odd, 43-54 all