Evaluate
-15
Factor
-15
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-6\times 2+\frac{-6-15}{7}
Subtract 13 from 7 to get -6.
-12+\frac{-6-15}{7}
Multiply -6 and 2 to get -12.
-12+\frac{-21}{7}
Subtract 15 from -6 to get -21.
-12-3
Divide -21 by 7 to get -3.
-15
Subtract 3 from -12 to get -15.
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Linear equation
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.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
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