Evaluate
4\left(a+1\right)
Expand
4a+4
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a^{2}+4a+4-a^{2}
Use binomial theorem \left(p+q\right)^{2}=p^{2}+2pq+q^{2} to expand \left(a+2\right)^{2}.
4a+4
Combine a^{2} and -a^{2} to get 0.
a^{2}+4a+4-a^{2}
Use binomial theorem \left(p+q\right)^{2}=p^{2}+2pq+q^{2} to expand \left(a+2\right)^{2}.
4a+4
Combine a^{2} and -a^{2} to get 0.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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Matrix
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Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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