Evaluate
\left(b+c+2\right)^{2}
Expand
b^{2}+2bc+4b+c^{2}+4c+4
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b^{2}+2bc+4b+c^{2}+4c+4
Square 2+b+c.
b^{2}+2bc+4b+c^{2}+4c+4
Square 2+b+c.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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