Question

1.) What number should be added to the expression x2+2x to change it into a perfect square trinomial?

Answer 1

1. A. (divide 2x by 2 and that gives you 1. 1^2=1.)

2. C. (divide 10x by 2 and get 5. 5^5=25.)

3. B=-3 or 13

4. You're supposed to multiply each side by 1/2 or divide each side by 2 :)

5. x=3 or -5

Answer 2

Answer:

1. A. (divide 2x by 2 and that gives you 1. 1^2=1.)

2. C. (divide 10x by 2 and get 5. 5^5=25.)

3. B=-3 or 13

4. You're supposed to multiply each side

5. x=3 or -5