Evaluate
x\left(7-9x-7x^{2}\right)
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7x-9x^{2}-7x^{3}
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-7x^{3}-14x^{2}+7x+5x^{2}
Use the distributive property to multiply -7x by x^{2}+2x-1.
-7x^{3}-9x^{2}+7x
Combine -14x^{2} and 5x^{2} to get -9x^{2}.
-7x^{3}-14x^{2}+7x+5x^{2}
Use the distributive property to multiply -7x by x^{2}+2x-1.
-7x^{3}-9x^{2}+7x
Combine -14x^{2} and 5x^{2} to get -9x^{2}.
Examples
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Limits
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