Evaluate
285
Factor
3\times 5\times 19
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80+20+7+20+17+14+4+13+21+23+22+44
Add 20 and 60 to get 80.
100+7+20+17+14+4+13+21+23+22+44
Add 80 and 20 to get 100.
107+20+17+14+4+13+21+23+22+44
Add 100 and 7 to get 107.
127+17+14+4+13+21+23+22+44
Add 107 and 20 to get 127.
144+14+4+13+21+23+22+44
Add 127 and 17 to get 144.
158+4+13+21+23+22+44
Add 144 and 14 to get 158.
162+13+21+23+22+44
Add 158 and 4 to get 162.
175+21+23+22+44
Add 162 and 13 to get 175.
196+23+22+44
Add 175 and 21 to get 196.
219+22+44
Add 196 and 23 to get 219.
241+44
Add 219 and 22 to get 241.
285
Add 241 and 44 to get 285.
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}