Factor
4\left(5x-2y\right)^{2}
Evaluate
4\left(5x-2y\right)^{2}
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4\left(25x^{2}-20xy+4y^{2}\right)
Factor out 4.
\left(5x-2y\right)^{2}
Consider 25x^{2}-20xy+4y^{2}. Use the perfect square formula, a^{2}-2ab+b^{2}=\left(a-b\right)^{2}, where a=5x and b=2y.
4\left(5x-2y\right)^{2}
Rewrite the complete factored expression.
Examples
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