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Marianna [84]
3 years ago
5

3t(t+2)-(3t^2+5t) when t=19

Mathematics
1 answer:
notsponge [240]3 years ago
8 0
Hello : 
<span>3t(t+2)-(3t^2+5t) when t=19
3(19)(19+2)-(3(19)²+5(19) =(57)(21)-(1083+95) =1197-1178 =19</span>
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