When f(x)=x^2-1 and g(x)=x+2

If someone could help me with first step I could probably do the rest.

Thanks,

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- Apr 8th 2010, 08:06 AMTallyFind f(g(-3))
When f(x)=x^2-1 and g(x)=x+2

If someone could help me with first step I could probably do the rest.

Thanks, - Apr 8th 2010, 08:14 AMCoach
Hi!

Try sticking the expressions for $\displaystyle g(x) $into the place of the x in the expression of $\displaystyle f(x)$.

$\displaystyle

f(g(x))=(x+2)^2-1

$.

Hope this helps... I'm not mathematician. - Apr 8th 2010, 08:26 AMharish21
- Apr 8th 2010, 11:03 AMTally