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

For this case we have the following equation:

Rewriting the equation we have:

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:

An equation that could be used to solve by factoring is:

the answer is c

hope this !

step-by-step explanation:

divide, then simplify your answer.

1. make -15.66 ÷   5.8 a fraction. then divide.

2. simplify.  

3. final answer.