Evaluate
-\frac{x^{2}}{2}-\frac{x}{6}-9
Factor
\frac{-3x^{2}-x-54}{6}
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-9-\frac{1}{6}x-\frac{1}{4}x^{2}-\frac{1}{4}x^{2}
Combine -\frac{1}{3}x and \frac{1}{6}x to get -\frac{1}{6}x.
-9-\frac{1}{6}x-\frac{1}{2}x^{2}
Combine -\frac{1}{4}x^{2} and -\frac{1}{4}x^{2} to get -\frac{1}{2}x^{2}.
\frac{-108-4x-3x^{2}+2x-3x^{2}}{12}
Factor out \frac{1}{12}.
-6x^{2}-2x-108
Consider -108-4x-3x^{2}+2x-3x^{2}. Multiply and combine like terms.
2\left(-3x^{2}-x-54\right)
Consider -6x^{2}-2x-108. Factor out 2.
\frac{-3x^{2}-x-54}{6}
Rewrite the complete factored expression.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
699 * 533
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
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}