Expand
a^{2}+4ab-4a+4b^{2}-8b+4
Evaluate
\left(a+2b-2\right)^{2}
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a^{2}+4ab-4a+4b^{2}-8b+4
Square a+2b-2.
a^{2}+4ab-4a+4b^{2}-8b+4
Square a+2b-2.
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