Question

What values are needed to make each expression a perfect square trinomial?

1. x^2+4x+____

2. x^2-10x+____

Answer 1

For the first one, find a number in which, when factored, will give you 4.

x² + 4x + 4
x 2
x 2

(x + 2)(x+ 2)

4 is your best answer



2. x² - 10x + ____

Same for this question. Find a number that, when factored, will give you -10

-100

x² - 10x + 25
x - 5
x -5

(x - 5)(x - 5)

25 is your answer


hope this helps