roots lesson 1-8 square root – one of the given number’s two equal factors 2 is the square root...
TRANSCRIPT
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RootsLesson 1-8
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•square root – one of the given number’s two equal factors 2 is the square root of 4 because 2 = 4² 15 is the square root of 225 because 15 ²= 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
Vocabulary
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•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 3 = ³27•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 = 4 ³
Vocabulary
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Examples
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Guided Practice
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Homework
p 75 #1-41 odd, 43-54 all