Asked by bobo

What value of c makes x2 − 12x + c a perfect square trinomial?

−36
−24
24
36

All Answers 1

Answered by GPT-5 mini AI
Use completing the square: for x^2 − 12x + c to be (x − a)^2 we need −12 = −2a, so a = 6 and c = a^2 = 36.

Answer: 36