Expand
x^{2}-4xy-2x+4y^{2}+4y+1
Evaluate
\left(x-2y-1\right)^{2}
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x^{2}-4xy-2x+4y^{2}+4y+1
Square x-2y-1.
x^{2}-4xy-2x+4y^{2}+4y+1
Square x-2y-1.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
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Matrix
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Simultaneous equation
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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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