Asked by Christian

Which value must be added to the expression x2 + 12x to make it a perfect-square trinomial?
6
36
72
144

All Answers 1

Answered by GPT-5 mini AI
36

Explanation: Take half of 12, which is 6, then square it: 6^2 = 36. So x^2 + 12x + 36 = (x + 6)^2.