20+4+2+2+2+1+3+5+6+2+3+5+6+2+3+3+3+2+3+2+1+2+1+1+2+3+2+2+2+1+2+3+3+2+4+5+4+4+1+3
Evaluate
127
Factor
127
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24+2+2+2+1+3+5+6+2+3+5+6+2+3+3+3+2+3+2+1+2+1+1+2+3+2+2+2+1+2+3+3+2+4+5+4+4+1+3
Add 20 and 4 to get 24.
26+2+2+1+3+5+6+2+3+5+6+2+3+3+3+2+3+2+1+2+1+1+2+3+2+2+2+1+2+3+3+2+4+5+4+4+1+3
Add 24 and 2 to get 26.
28+2+1+3+5+6+2+3+5+6+2+3+3+3+2+3+2+1+2+1+1+2+3+2+2+2+1+2+3+3+2+4+5+4+4+1+3
Add 26 and 2 to get 28.
30+1+3+5+6+2+3+5+6+2+3+3+3+2+3+2+1+2+1+1+2+3+2+2+2+1+2+3+3+2+4+5+4+4+1+3
Add 28 and 2 to get 30.
31+3+5+6+2+3+5+6+2+3+3+3+2+3+2+1+2+1+1+2+3+2+2+2+1+2+3+3+2+4+5+4+4+1+3
Add 30 and 1 to get 31.
34+5+6+2+3+5+6+2+3+3+3+2+3+2+1+2+1+1+2+3+2+2+2+1+2+3+3+2+4+5+4+4+1+3
Add 31 and 3 to get 34.
39+6+2+3+5+6+2+3+3+3+2+3+2+1+2+1+1+2+3+2+2+2+1+2+3+3+2+4+5+4+4+1+3
Add 34 and 5 to get 39.
45+2+3+5+6+2+3+3+3+2+3+2+1+2+1+1+2+3+2+2+2+1+2+3+3+2+4+5+4+4+1+3
Add 39 and 6 to get 45.
47+3+5+6+2+3+3+3+2+3+2+1+2+1+1+2+3+2+2+2+1+2+3+3+2+4+5+4+4+1+3
Add 45 and 2 to get 47.
50+5+6+2+3+3+3+2+3+2+1+2+1+1+2+3+2+2+2+1+2+3+3+2+4+5+4+4+1+3
Add 47 and 3 to get 50.
55+6+2+3+3+3+2+3+2+1+2+1+1+2+3+2+2+2+1+2+3+3+2+4+5+4+4+1+3
Add 50 and 5 to get 55.
61+2+3+3+3+2+3+2+1+2+1+1+2+3+2+2+2+1+2+3+3+2+4+5+4+4+1+3
Add 55 and 6 to get 61.
63+3+3+3+2+3+2+1+2+1+1+2+3+2+2+2+1+2+3+3+2+4+5+4+4+1+3
Add 61 and 2 to get 63.
66+3+3+2+3+2+1+2+1+1+2+3+2+2+2+1+2+3+3+2+4+5+4+4+1+3
Add 63 and 3 to get 66.
69+3+2+3+2+1+2+1+1+2+3+2+2+2+1+2+3+3+2+4+5+4+4+1+3
Add 66 and 3 to get 69.
72+2+3+2+1+2+1+1+2+3+2+2+2+1+2+3+3+2+4+5+4+4+1+3
Add 69 and 3 to get 72.
74+3+2+1+2+1+1+2+3+2+2+2+1+2+3+3+2+4+5+4+4+1+3
Add 72 and 2 to get 74.
77+2+1+2+1+1+2+3+2+2+2+1+2+3+3+2+4+5+4+4+1+3
Add 74 and 3 to get 77.
79+1+2+1+1+2+3+2+2+2+1+2+3+3+2+4+5+4+4+1+3
Add 77 and 2 to get 79.
80+2+1+1+2+3+2+2+2+1+2+3+3+2+4+5+4+4+1+3
Add 79 and 1 to get 80.
82+1+1+2+3+2+2+2+1+2+3+3+2+4+5+4+4+1+3
Add 80 and 2 to get 82.
83+1+2+3+2+2+2+1+2+3+3+2+4+5+4+4+1+3
Add 82 and 1 to get 83.
84+2+3+2+2+2+1+2+3+3+2+4+5+4+4+1+3
Add 83 and 1 to get 84.
86+3+2+2+2+1+2+3+3+2+4+5+4+4+1+3
Add 84 and 2 to get 86.
89+2+2+2+1+2+3+3+2+4+5+4+4+1+3
Add 86 and 3 to get 89.
91+2+2+1+2+3+3+2+4+5+4+4+1+3
Add 89 and 2 to get 91.
93+2+1+2+3+3+2+4+5+4+4+1+3
Add 91 and 2 to get 93.
95+1+2+3+3+2+4+5+4+4+1+3
Add 93 and 2 to get 95.
96+2+3+3+2+4+5+4+4+1+3
Add 95 and 1 to get 96.
98+3+3+2+4+5+4+4+1+3
Add 96 and 2 to get 98.
101+3+2+4+5+4+4+1+3
Add 98 and 3 to get 101.
104+2+4+5+4+4+1+3
Add 101 and 3 to get 104.
106+4+5+4+4+1+3
Add 104 and 2 to get 106.
110+5+4+4+1+3
Add 106 and 4 to get 110.
115+4+4+1+3
Add 110 and 5 to get 115.
119+4+1+3
Add 115 and 4 to get 119.
123+1+3
Add 119 and 4 to get 123.
124+3
Add 123 and 1 to get 124.
127
Add 124 and 3 to get 127.
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}