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5t^2-10t-15 |
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Answer» ? 5t2-10t-15 =5(t2- 2t-3 ) =5 (t2 - 3t + t - 3) =5 [t(t-3) +1(t-3)] = 5 (t+1) (t-3) ? (t+1) (t-3) |
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