Evaluate
1430
Factor
2\times 5\times 11\times 13
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2+12+30+56+90+132+182+240+306+380
Multiply 1 and 2 to get 2. Multiply 3 and 4 to get 12. Multiply 5 and 6 to get 30. Multiply 7 and 8 to get 56. Multiply 9 and 10 to get 90. Multiply 11 and 12 to get 132. Multiply 13 and 14 to get 182. Multiply 15 and 16 to get 240. Multiply 17 and 18 to get 306. Multiply 19 and 20 to get 380.
14+30+56+90+132+182+240+306+380
Add 2 and 12 to get 14.
44+56+90+132+182+240+306+380
Add 14 and 30 to get 44.
100+90+132+182+240+306+380
Add 44 and 56 to get 100.
190+132+182+240+306+380
Add 100 and 90 to get 190.
322+182+240+306+380
Add 190 and 132 to get 322.
504+240+306+380
Add 322 and 182 to get 504.
744+306+380
Add 504 and 240 to get 744.
1050+380
Add 744 and 306 to get 1050.
1430
Add 1050 and 380 to get 1430.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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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}