Question

Given the following perfect square trinomial, fill in the missing term
4x2 + ___x + 49

Answer 1

Below.

Explanation:

Taking the square roots of the 2 given terms we write it as a binomial

(2x + 7(2x + 7)

This = 4x^2 + 14x + 14x + 49

= 4x^2 + 28x + 49

So the missing number is 28.