SOLUTION: c(x)= 2x^2−4x+3 and d(x) =−x^3 +x+1 find d(4a^2)

d( x ) = −x3

You want d(4a2)

So take out the x's and put empty parentheses in their place, like this:

d( x ) =   −x3

d(   ) = -(   )3

Then put 4a2 in the empty parentheses:

d(4a2) = -(4a2)3

Then simplify the right side,

d(4a2) = -43a6

d(4a2) = -64a6

Edwin