Question

Which equation could be used to solve y 2+7y=18 by factoring?

Answer 1

 (y + 9)(y - 2) = 0  would be the correct answer .

Answer 2

For this case we have the following equation:

$y ^ 2 + 7y = 18$

Rewriting the equation we have:

$y ^ 2 + 7y-18 = 0$

Then, we must factor the equation:

We are looking for two numbers that are equal to 7 and multiplied equal to -18.

We have then:

$(y + 9) (y-2) = 0$

Answer:

An equation that could be used to solve $y^2 + 7y = 18$ by factoring is:

$(y + 9) (y-2) = 0$