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OpenStudy (anonymous):
r^2-8tw-2wr-4tr.. how would I factor by grouping?
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OpenStudy (uri):
First let's arrange this: -8tw-4tr+r^2+2wr -4t(2w+r)+r(r+2w) (2w+r)(-4t+r)
OpenStudy (anonymous):
okay, my question is why write it different? make it easier?
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