Evaluate
9\left(z^{2}+z+1\right)
Expand
9z^{2}+9z+9
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\frac{27\left(z-1\right)\left(z^{2}+z+1\right)}{3\left(z-1\right)}
Factor the expressions that are not already factored.
9\left(z^{2}+z+1\right)
Cancel out 3\left(z-1\right) in both numerator and denominator.
9z^{2}+9z+9
Expand the expression.
\frac{27\left(z-1\right)\left(z^{2}+z+1\right)}{3\left(z-1\right)}
Factor the expressions that are not already factored.
9\left(z^{2}+z+1\right)
Cancel out 3\left(z-1\right) in both numerator and denominator.
9z^{2}+9z+9
Expand the expression.
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{ x } ^ { 2 } - 4 x - 5 = 0
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y = 3x + 4
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Matrix
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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
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
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