SOLUTION: Use the quadratic formula to solve the equation. 3y^2 + 9y= -6

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Question 621737: Use the quadratic formula to solve the equation. 3y^2 + 9y= -6
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

+3y%5E2+%2B+9y=+-6

y%5E2+%2B+3y+%2B+2+=+0

y+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+ 

y+=+%28-3+%2B-+sqrt%28+1+%29%29%2F%282%29+

 y = -2  or y = -1



CHECKING our Answer*** by factoring

y%5E2+%2B+3y+%2B+2+=+0

 (y+2)(y+1) = 0

 y = -2  or y = -1