Evaluate
\left(x-1\right)\left(x+1\right)^{2}
Expand
x^{3}+x^{2}-x-1
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\left(x-1\right)\left(x^{2}+2x+1\right)
Use binomial theorem \left(a+b\right)^{2}=a^{2}+2ab+b^{2} to expand \left(x+1\right)^{2}.
x^{3}+x^{2}-x-1
Use the distributive property to multiply x-1 by x^{2}+2x+1 and combine like terms.
\left(x-1\right)\left(x^{2}+2x+1\right)
Use binomial theorem \left(a+b\right)^{2}=a^{2}+2ab+b^{2} to expand \left(x+1\right)^{2}.
x^{3}+x^{2}-x-1
Use the distributive property to multiply x-1 by x^{2}+2x+1 and combine like terms.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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Matrix
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Simultaneous equation
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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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