SOLUTION: This is a quadratic equation: {{{y^2+8y=0}}}. Help please? I got it wrong.

Algebra ->  Expressions -> SOLUTION: This is a quadratic equation: {{{y^2+8y=0}}}. Help please? I got it wrong.      Log On


   

Question 8442: This is a quadratic equation: y%5E2%2B8y=0. Help please? I got it wrong.
Answer by drglass(89) About Me  (Show Source):
You can put this solution on YOUR website!
There are several ways to solve this. If you use the quadratic equation the use a = 1, b = 8 and c = 0. You can also factor this. Notice that y%5E2+=y%2Ay. Let's rewrite the equation as follows:
y%5E2+%2B+8y+=+y%2Ay+%2B+8y+=+0.
We can factor one y from the expression:
y%28y+%2B+8%29+=+0
This equation is true under two conditions. First, y = 0 and second, y = -8.