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:
\((y + 9) (y-2) = 0\)
