Evaluate
-39
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-39
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5\left(-\frac{35}{5}-\frac{4}{5}\right)
Convert -7 to fraction -\frac{35}{5}.
5\times \frac{-35-4}{5}
Since -\frac{35}{5} and \frac{4}{5} have the same denominator, subtract them by subtracting their numerators.
5\left(-\frac{39}{5}\right)
Subtract 4 from -35 to get -39.
-39
Cancel out 5 and 5.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
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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
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
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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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