Mathematics
Tank2012
5

What value of c makes the polynomial below a perfect square? X^2+14x+c

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(1) Answers
sheykindle

x² + 14x + c Remember: (x+c)² = x² + 2xc + c² 14x = 2xc 14 = 2c c = 7 Therefore: (x+7)² = x² + 14x + 49

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