Asked by Anonymous

3t(t+2)-(3t+5t) for t=19
Answered by bobpursley
if one factors that, one gets
t(3t+6-3-5)=t(3t-2)=19(57-2) check that.
Answered by Caitlyn
3t(t+2)-(3t+5t) for t=19
3t(t+2)-(8t)
3(19)*(19+2)-(8*19)
57*21-152
1197-152=1045
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