Evaluate
\frac{\left(x-y+4\right)^{2}}{4}
Expand
-\frac{xy}{2}+\frac{x^{2}}{4}+\frac{y^{2}}{4}+2x-2y+4
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\frac{1}{4}x^{2}-\frac{1}{2}xy+2x+\frac{1}{4}y^{2}-2y+4
Square \frac{1}{2}x-\frac{1}{2}y+2.
\frac{1}{4}x^{2}-\frac{1}{2}xy+2x+\frac{1}{4}y^{2}-2y+4
Square \frac{1}{2}x-\frac{1}{2}y+2.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
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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
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Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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