Roots Lesson 1-8 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.

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Presented by Mr. Laws 8th Grade Math, JCMS

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Presentation transcript:

Roots Lesson 1-8

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 is a perfect square because its square root is 9

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

p 75 #1-41 odd, all