Question

Which values for a and b make the statement (a + 2)(b - 9) = 0 true?

a = 2, b = -9
a = -2, b = 9
a = -2, b = -9
a = 2, y = 9

Answer 1

I love answering your question XD
What you have to do is set each parenthesis to 0

a+2 = 0
b-9 = 0

Are you able to solve from here?

Answer 2

Would it be #1?

Answer 3

Remember you have to take the -9 and 2 over to the other side

Answer 4

But when you plug is (9) -9 = 0, the equation is correct
When you plug in (-2)+2) = 0, the equation is correct
You are left with x = -2 and x = 9

Answer 5

@KirbyLegs Oh I get it.

Answer 6

@KirbyLegs Thanks!

Answer 7

Yay!