Evaluate
385
Factor
5\times 7\times 11
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\frac{10\times 11\left(2\times 10+1\right)}{6}
Add 10 and 1 to get 11.
\frac{110\left(2\times 10+1\right)}{6}
Multiply 10 and 11 to get 110.
\frac{110\left(20+1\right)}{6}
Multiply 2 and 10 to get 20.
\frac{110\times 21}{6}
Add 20 and 1 to get 21.
\frac{2310}{6}
Multiply 110 and 21 to get 2310.
385
Divide 2310 by 6 to get 385.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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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
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}