Evaluate
8
Factor
2^{3}
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\frac{\frac{12+2}{3}\times \frac{5\times 7+4}{7}}{\frac{3\times 4+1}{4}}
Multiply 4 and 3 to get 12.
\frac{\frac{14}{3}\times \frac{5\times 7+4}{7}}{\frac{3\times 4+1}{4}}
Add 12 and 2 to get 14.
\frac{\frac{14}{3}\times \frac{35+4}{7}}{\frac{3\times 4+1}{4}}
Multiply 5 and 7 to get 35.
\frac{\frac{14}{3}\times \frac{39}{7}}{\frac{3\times 4+1}{4}}
Add 35 and 4 to get 39.
\frac{\frac{14\times 39}{3\times 7}}{\frac{3\times 4+1}{4}}
Multiply \frac{14}{3} times \frac{39}{7} by multiplying numerator times numerator and denominator times denominator.
\frac{\frac{546}{21}}{\frac{3\times 4+1}{4}}
Do the multiplications in the fraction \frac{14\times 39}{3\times 7}.
\frac{26}{\frac{3\times 4+1}{4}}
Divide 546 by 21 to get 26.
\frac{26}{\frac{12+1}{4}}
Multiply 3 and 4 to get 12.
\frac{26}{\frac{13}{4}}
Add 12 and 1 to get 13.
26\times \frac{4}{13}
Divide 26 by \frac{13}{4} by multiplying 26 by the reciprocal of \frac{13}{4}.
\frac{26\times 4}{13}
Express 26\times \frac{4}{13} as a single fraction.
\frac{104}{13}
Multiply 26 and 4 to get 104.
8
Divide 104 by 13 to get 8.
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y = 3x + 4
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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}