1.

1.5t*2+5t -84 =0Find t?

Answer» t is 5.6
understood or need more clarification
convert 1.5 into 3/2 oknow 3/2t*2+5t-84=0now 3/2t*2+14t-9t-84=0[3/2.84=121also=3.7.2.3 ok so factors are 14 and-9 ][ here we let .=multiplication means 2.3 =2 multipy3]now taking comman3/2t[t+28/3]-9[t+28/3]now [t+28/3] [3/2t-9]=0so t=-28/3 or t=9.2/3so we take only postive value so t=9.2/3=6so t =6 i hope you will understand
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Show the solution
t is 6


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