Factor
3a\left(x+y\right)^{2}
Evaluate
3a\left(x+y\right)^{2}
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3\left(ax^{2}+2axy+ay^{2}\right)
Factor out 3.
a\left(x^{2}+2xy+y^{2}\right)
Consider ax^{2}+2axy+ay^{2}. Factor out a.
\left(x+y\right)^{2}
Consider x^{2}+2xy+y^{2}. Use the perfect square formula, p^{2}+2pq+q^{2}=\left(p+q\right)^{2}, where p=x and q=y.
3a\left(x+y\right)^{2}
Rewrite the complete factored expression.
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