Evaluate
14
Factor
2\times 7
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8\times \frac{48+1}{24}\times \frac{6}{7}
Multiply 2 and 24 to get 48.
8\times \frac{49}{24}\times \frac{6}{7}
Add 48 and 1 to get 49.
\frac{8\times 49}{24}\times \frac{6}{7}
Express 8\times \frac{49}{24} as a single fraction.
\frac{392}{24}\times \frac{6}{7}
Multiply 8 and 49 to get 392.
\frac{49}{3}\times \frac{6}{7}
Reduce the fraction \frac{392}{24} to lowest terms by extracting and canceling out 8.
\frac{49\times 6}{3\times 7}
Multiply \frac{49}{3} times \frac{6}{7} by multiplying numerator times numerator and denominator times denominator.
\frac{294}{21}
Do the multiplications in the fraction \frac{49\times 6}{3\times 7}.
14
Divide 294 by 21 to get 14.
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{ x } ^ { 2 } - 4 x - 5 = 0
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Matrix
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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}