if f(x)is -3/4,then find 2x^3+x^2-2x-1
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answer for the given problem is given
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Step-by-step explanation:
the answer will be
f(-3/4)=2(-3/4)³+(-3/4)²-2(-3/4)-1
=2(-27/64)+9/16+3/2-1
-54/64+9/16+1/2
-27/32+9/16+1/2
-27/32+18/32+1/2
-9/32+1/2
-9/32+16/32
7/32
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