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OpenStudy (anonymous):
Can someone please help me on this question, Let f(x) = 3x^2 - 6x, Evaluate and simplify of the expression f(t+h)
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OpenStudy (saifoo.khan):
3x(x - 2)
OpenStudy (anonymous):
OH my bad haha
OpenStudy (saifoo.khan):
lol
OpenStudy (anonymous):
actually the answer is 3t^2 +6ht + 3h^2-6t-6h
OpenStudy (anonymous):
\[3(x+h)^2-6(x+h)=3(x^2+2hx+h^2)-6x-6h\]\[=3x^2+6xh+3h^2-6x-6h\]
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OpenStudy (anonymous):
Oh so thats how you do it.. thanks a lot I appreciate it.
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