SOLUTION: I don't know how to face a^3-4a^2-21a, I know tha ac method won't work should I start out by factoring out the a, so it will say a(a^2-4a-21)

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: I don't know how to face a^3-4a^2-21a, I know tha ac method won't work should I start out by factoring out the a, so it will say a(a^2-4a-21)      Log On


   



Question 583251: I don't know how to face a^3-4a^2-21a, I know tha ac method won't work should I start out by factoring out the a, so it will say a(a^2-4a-21)
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
I don't know how to face a^3-4a^2-21a, I know tha ac method won't work should I start out by factoring out the a, so it will say a(a^2-4a-21)
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a^2-4a-21 can be factored.