Evaluate
\frac{3z^{4}}{z^{2}+4}
Expand
\frac{3z^{4}}{z^{2}+4}
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\frac{3\left(z^{2}+7\right)z^{4}}{\left(z^{2}+4\right)\left(z^{2}+7\right)}
Factor the expressions that are not already factored.
\frac{3z^{4}}{z^{2}+4}
Cancel out z^{2}+7 in both numerator and denominator.
\frac{3\left(z^{2}+7\right)z^{4}}{\left(z^{2}+4\right)\left(z^{2}+7\right)}
Factor the expressions that are not already factored.
\frac{3z^{4}}{z^{2}+4}
Cancel out z^{2}+7 in both numerator and denominator.
Examples
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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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