SOLUTION: -t^2+3t+2=0 when you put x=1.5 why is it -(1.5)^2+3*1.5+2=4.25 instead of (-1.5)^2+4.5+2=8.75

Algebra ->  Equations -> SOLUTION: -t^2+3t+2=0 when you put x=1.5 why is it -(1.5)^2+3*1.5+2=4.25 instead of (-1.5)^2+4.5+2=8.75      Log On


   

Question 971077: -t^2+3t+2=0
when you put x=1.5 why is it -(1.5)^2+3*1.5+2=4.25 instead of (-1.5)^2+4.5+2=8.75
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
-t^2+3t+2=0
when you put x=1.5 why is it -(1.5)^2+3*1.5+2=4.25 instead of (-1.5)^2+4.5+2=8.75
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-t^2 = -1*t^2, not the same as (-t)^2
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Same as at^2 = a*t^2 not (at)^2