Evaluate
56
Factor
2^{3}\times 7
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\frac{1\times 2}{3\times 7}\times 7\times 7\times 12
Multiply \frac{1}{3} times \frac{2}{7} by multiplying numerator times numerator and denominator times denominator.
\frac{2}{21}\times 7\times 7\times 12
Do the multiplications in the fraction \frac{1\times 2}{3\times 7}.
\frac{2\times 7}{21}\times 7\times 12
Express \frac{2}{21}\times 7 as a single fraction.
\frac{14}{21}\times 7\times 12
Multiply 2 and 7 to get 14.
\frac{2}{3}\times 7\times 12
Reduce the fraction \frac{14}{21} to lowest terms by extracting and canceling out 7.
\frac{2\times 7}{3}\times 12
Express \frac{2}{3}\times 7 as a single fraction.
\frac{14}{3}\times 12
Multiply 2 and 7 to get 14.
\frac{14\times 12}{3}
Express \frac{14}{3}\times 12 as a single fraction.
\frac{168}{3}
Multiply 14 and 12 to get 168.
56
Divide 168 by 3 to get 56.
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{ x } ^ { 2 } - 4 x - 5 = 0
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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}