Decide what number must be added to each binomial to make a perfect square trinomial x {}^(2) + 22x +

Question

Decide what number must be added to each binomial to make a perfect square trinomial


`x {}^(2) + 22x +`

Answer 1

To make a perfect square, we must know that 22/2 = 11. In this case:

(x + 11)^2 = x^2 + 22x + 121