SOLUTION: 4y^2-16y-128

Algebra ->  Algebra  -> Polynomials-and-rational-expressions -> SOLUTION: 4y^2-16y-128      Log On

Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations!
Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help!

   

Question 305196: 4y^2-16y-128
Found 2 solutions by mananth, richwmiller:
Answer by mananth(12270) About Me  (Show Source):
You can put this solution on YOUR website!
4y^2-16y-128
(4y^2-4y-32)
4(y^2-8y+4y-32)
4{y(y-8)+4(y-8)}
4(y-8)(y+4)

Answer by richwmiller(9143) About Me  (Show Source):
You can put this solution on YOUR website!
factor out 4
y^2-4y-32
find factors of -32 which add up to -4
-8 and 4
4*(y-8)*(y+4)