Question

What number should be added to the expression x² + 2x to change it into a

perfect square trinomial?
0 1
O 2
04
09

Answer 1

To change x² + 2x into a perfect square trinomial, add 1.

Step-by-step explanation:

To change the expression x² + 2x into a perfect square trinomial, we need to add a specific number. In this case, the number that should be added is the square of half of the coefficient of the x term. The coefficient of x is 2, so half of it is 1. The square of 1 is 1. Therefore, we should add 1 to the expression.

Learn more about Perfect square trinomials