Evaluate
12x^{3}+21x+15
Factor
3\left(4x^{3}+7x+5\right)
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12x^{3}+21x+15
Combine 3x and 18x to get 21x.
3\left(4x^{3}+x+6x+5\right)
Factor out 3. Polynomial 4x^{3}+7x+5 is not factored since it does not have any rational roots.
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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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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