Evaluate
-8
Factor
-8
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\frac{-19-13}{4}
Since -\frac{19}{4} and \frac{13}{4} have the same denominator, subtract them by subtracting their numerators.
\frac{-32}{4}
Subtract 13 from -19 to get -32.
-8
Divide -32 by 4 to get -8.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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Linear equation
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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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