SOLUTION: solve for 8m^3-40m=4m^2

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Question 211344: solve for 8m^3-40m=4m^2
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
Solve for m:
8m%5E3-40m+=+4m%5E2 Subtract 4m%5E2 from both sides.
8m%5E3-4m%5E2-40m+=+0 Fator 4m.
4m%282m%5E2-m-10%29+=+0 Factor thr trinomial.
4m%282m-5%29%28m%2B2%29+=+0 Apply zero product rule:
4m+=+0 or 2m-5+=+0 or m%2B2+=+0 so...
m+=+0 or m+=+5%2F2 or m+=+-2