Evaluate
\left(x^{2}+18x-81\right)^{2}
Expand
x^{4}+36x^{3}+162x^{2}-2916x+6561
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\left(x^{2}+18x-81\right)^{2}
Calculate -x to the power of 2 and get x^{2}.
x^{4}+36x^{3}+162x^{2}-2916x+6561
Square x^{2}+18x-81.
\left(x^{2}+18x-81\right)^{2}
Calculate -x to the power of 2 and get x^{2}.
x^{4}+36x^{3}+162x^{2}-2916x+6561
Square x^{2}+18x-81.
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