Factor
x\left(x+7y\right)^{2}
Evaluate
x\left(x+7y\right)^{2}
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x\left(x^{2}+14xy+49y^{2}\right)
Factor out x.
\left(x+7y\right)^{2}
Consider x^{2}+14xy+49y^{2}. Use the perfect square formula, a^{2}+2ab+b^{2}=\left(a+b\right)^{2}, where a=x and b=7y.
x\left(x+7y\right)^{2}
Rewrite the complete factored expression.
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