SOLUTION: If r(x)=2x^3-3x, find f(h+2).

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Question 133755: If r(x)=2x^3-3x, find f(h+2).
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
If f%28x%29+=+2x%5E3+-+3x, find f%28h%2B2%29 . Substitute (h+2) for x in the given function.
f%28h%2B2%29+=+2%28h%2B2%29%5E3-3%28h%2B2%29
f%28h%2B2%29+=+2%28h%5E3%2B6h%5E3%2B12h%2B8%29-3h-6
f%28h%2B2%29+=+2h%5E3%2B12h%5E2%2B24h%2B16-3h-6
f%28h%2B2%29+=+2h%5E3%2B12h%5E2%2B21h%2B10