Evaluate
69
Factor
3\times 23
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\frac{20+3}{4}\times 8\times \frac{1\times 2+1}{2}
Multiply 5 and 4 to get 20.
\frac{23}{4}\times 8\times \frac{1\times 2+1}{2}
Add 20 and 3 to get 23.
\frac{23\times 8}{4}\times \frac{1\times 2+1}{2}
Express \frac{23}{4}\times 8 as a single fraction.
\frac{184}{4}\times \frac{1\times 2+1}{2}
Multiply 23 and 8 to get 184.
46\times \frac{1\times 2+1}{2}
Divide 184 by 4 to get 46.
46\times \frac{2+1}{2}
Multiply 1 and 2 to get 2.
46\times \frac{3}{2}
Add 2 and 1 to get 3.
\frac{46\times 3}{2}
Express 46\times \frac{3}{2} as a single fraction.
\frac{138}{2}
Multiply 46 and 3 to get 138.
69
Divide 138 by 2 to get 69.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
4 \sin \theta \cos \theta = 2 \sin \theta
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}