What value of c makes the polynomial below a perfect square? x^2 + 14x + c c = A. 49 B. 28 C. 7 D. 196

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asked Jan 11, 2019 26.8k views

2 Answers

Sameera Kumarasingha · Answer 1 · 2019-01-15T08:02:24+0000

The value for c is A. 49. That comes from the process of completing the square where you take half the linear term, square it, and add it in. Our linear term is 14. Half of 14 is 7, and 7 squared is 49. So A

What value of c makes the polynomial below a perfect square? x^2 + 14x + c c = A. 49 B. 28 C. 7 D. 196

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