SOLUTION: This is from a Factoring Polynomials Section i need help finding the diffrent solutions to y(2y+7)=15

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: This is from a Factoring Polynomials Section i need help finding the diffrent solutions to y(2y+7)=15      Log On


   

Question 171270: This is from a Factoring Polynomials Section
i need help finding the diffrent solutions to
y(2y+7)=15
Answer by Mathtut(3670) About Me  (Show Source):
You can put this solution on YOUR website!
y%282y%2B7%29=15 given
:
2y%5E2%2B7y=15distribute
:
2y%5E2%2B7y-15=0subtract 15 from both sides
:
%282y-3%29%28y%2B5%29factor
:
2y-3=0--->add 3 to each side--->2y=3--->divide by 2 on each side y=3/2
y+5=0--->subract 5 from each side--->y=-5
:
system%28y=3%2F2%2Cy=-5%29