Evaluate
18
Factor
2\times 3^{2}
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\frac{-49+13}{-2}
Calculate 7 to the power of 2 and get 49.
\frac{-36}{-2}
Add -49 and 13 to get -36.
18
Divide -36 by -2 to get 18.
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
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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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