Evaluate
10y+2
Factor
2\left(5y+1\right)
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18y-2-4y+4-4y
Combine 20y and -2y to get 18y.
14y-2+4-4y
Combine 18y and -4y to get 14y.
14y+2-4y
Add -2 and 4 to get 2.
10y+2
Combine 14y and -4y to get 10y.
2\left(5y+1\right)
Factor out 2.
5y+1
Consider 10y-y-1-2y+2-2y. Multiply and combine like terms.
2\left(5y+1\right)
Rewrite the complete factored expression.
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}