Factor
\left(x+4\right)\left(x^{2}-4x+16\right)
Evaluate
x^{3}+64
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x^{3}+64
Multiply and combine like terms.
\left(x+4\right)\left(x^{2}-4x+16\right)
Rewrite x^{3}+64 as x^{3}+4^{3}. The sum of cubes can be factored using the rule: a^{3}+b^{3}=\left(a+b\right)\left(a^{2}-ab+b^{2}\right). Polynomial x^{2}-4x+16 is not factored since it does not have any rational roots.
64+x^{3}
Calculate 8 to the power of 2 and get 64.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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y = 3x + 4
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Matrix
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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