Question

Which value must be added to the expression x2 + x to make it a perfect-square trinomial?

Answer 1

14

Explanation:

ik it

Answer 2

answer is 1/4

using
(a+b)^2 = a^2 + 2 a b + b^2

so (x + 1/2)^2 = x^2 + 2 (1/2) (x) + 1/4 = x^2 + x + 1/4