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\frac{\left(x^{2}+y^{2}\right)\left(x+y\right)}{xy\left(x+y\right)}-\frac{x^{2}x}{xy\left(x+y\right)}-\frac{y^{2}}{x\left(x+y\right)}
To add or subtract expressions, expand them to make their denominators the same. Least common multiple of xy and y\left(x+y\right) is xy\left(x+y\right). Multiply \frac{x^{2}+y^{2}}{xy} times \frac{x+y}{x+y}. Multiply \frac{x^{2}}{y\left(x+y\right)} times \frac{x}{x}.
\frac{\left(x^{2}+y^{2}\right)\left(x+y\right)-x^{2}x}{xy\left(x+y\right)}-\frac{y^{2}}{x\left(x+y\right)}
Since \frac{\left(x^{2}+y^{2}\right)\left(x+y\right)}{xy\left(x+y\right)} and \frac{x^{2}x}{xy\left(x+y\right)} have the same denominator, subtract them by subtracting their numerators.
\frac{x^{3}+x^{2}y+y^{2}x+y^{3}-x^{3}}{xy\left(x+y\right)}-\frac{y^{2}}{x\left(x+y\right)}
Do the multiplications in \left(x^{2}+y^{2}\right)\left(x+y\right)-x^{2}x.
\frac{y^{2}x+x^{2}y+y^{3}}{xy\left(x+y\right)}-\frac{y^{2}}{x\left(x+y\right)}
Combine like terms in x^{3}+x^{2}y+y^{2}x+y^{3}-x^{3}.
\frac{y\left(x^{2}+xy+y^{2}\right)}{xy\left(x+y\right)}-\frac{y^{2}}{x\left(x+y\right)}
Factor the expressions that are not already factored in \frac{y^{2}x+x^{2}y+y^{3}}{xy\left(x+y\right)}.
\frac{x^{2}+xy+y^{2}}{x\left(x+y\right)}-\frac{y^{2}}{x\left(x+y\right)}
Cancel out y in both numerator and denominator.
\frac{x^{2}+xy+y^{2}-y^{2}}{x\left(x+y\right)}
Since \frac{x^{2}+xy+y^{2}}{x\left(x+y\right)} and \frac{y^{2}}{x\left(x+y\right)} have the same denominator, subtract them by subtracting their numerators.
\frac{x^{2}+xy}{x\left(x+y\right)}
Combine like terms in x^{2}+xy+y^{2}-y^{2}.
\frac{x\left(x+y\right)}{x\left(x+y\right)}
Factor the expressions that are not already factored in \frac{x^{2}+xy}{x\left(x+y\right)}.
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Cancel out x\left(x+y\right) in both numerator and denominator.
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}