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Mathematics
2 October, 07:35
3t (t+2) - (3t^2+5t) when t=19
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Adrianna Hester
2 October, 07:38
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Hello:
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
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