Evaluate
\frac{v}{2u}+3
Factor
\frac{6u+v}{2u}
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1+4+\frac{uv}{2u^{2}}-2
Multiply u and u to get u^{2}.
5+\frac{uv}{2u^{2}}-2
Add 1 and 4 to get 5.
5+\frac{v}{2u}-2
Cancel out u in both numerator and denominator.
3+\frac{v}{2u}
Subtract 2 from 5 to get 3.
\frac{3\times 2u}{2u}+\frac{v}{2u}
To add or subtract expressions, expand them to make their denominators the same. Multiply 3 times \frac{2u}{2u}.
\frac{3\times 2u+v}{2u}
Since \frac{3\times 2u}{2u} and \frac{v}{2u} have the same denominator, add them by adding their numerators.
\frac{6u+v}{2u}
Do the multiplications in 3\times 2u+v.
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}