Final Answer
$4\left(x-y\right)\left(x+y\right)$
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Step-by-step Solution
Specify the solving method
1
Factor the polynomial $\left(2x-2y\right)$ by it's greatest common factor (GCF): $2$
$2\left(x-y\right)\left(2x+2y\right)$
2
Factor the polynomial $\left(2x+2y\right)$ by it's greatest common factor (GCF): $2$
$4\left(x-y\right)\left(x+y\right)$
Final Answer
$4\left(x-y\right)\left(x+y\right)$