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Fill in the blank to make the expression a perfect square.. . u^2-16u+?
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Fill in the blank to make the expression a perfect square.. . u^2-16u+?

User Elzoy
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1 Answer

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u² - 16 u + 64 = ( u - 8 )²
because: A² - 2 A B + B² = ( A - B )²
Answer: 64
User Simon Fromme
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