Evaluate
990
Factor
2\times 3^{2}\times 5\times 11
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54+108+180+270+378
Multiply 6 and 9 to get 54. Multiply 9 and 12 to get 108. Multiply 12 and 15 to get 180. Multiply 15 and 18 to get 270. Multiply 18 and 21 to get 378.
162+180+270+378
Add 54 and 108 to get 162.
342+270+378
Add 162 and 180 to get 342.
612+378
Add 342 and 270 to get 612.
990
Add 612 and 378 to get 990.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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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}