stuck Maclaurin series

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Maclaurin series:
Find the approximate value of the area bounded by y=x^4 e^x, x=0.2, and the x-axis by using three terms of the appropraiate Maclaurin series.

Could someone help me please?
I know the formula for e^x is e^x = 1 + x + x^2/2! + x^3/3! + .... but where do you calculate x^4 in to the formula or do you this formula? Just a little confused.
Allan
 
Take the first three terms of the Maclaurin series for \(\displaystyle e^x\) and multiply by \(\displaystyle x^4\).
 
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