Evaluate
-\frac{4}{\left(x+y\right)^{2}}
Expand
-\frac{4}{\left(x+y\right)^{2}}
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\frac{-4}{\left(x+y\right)^{2}}
Since \frac{-2}{\left(x+y\right)^{2}} and \frac{2}{\left(x+y\right)^{2}} have the same denominator, subtract them by subtracting their numerators. Subtract 2 from -2 to get -4.
\frac{-4}{x^{2}+2xy+y^{2}}
Expand \left(x+y\right)^{2}.
\frac{-4}{\left(x+y\right)^{2}}
Since \frac{-2}{\left(x+y\right)^{2}} and \frac{2}{\left(x+y\right)^{2}} have the same denominator, subtract them by subtracting their numerators. Subtract 2 from -2 to get -4.
\frac{-4}{x^{2}+2xy+y^{2}}
Expand \left(x+y\right)^{2}.
Examples
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y = 3x + 4
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\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.
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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