Evaluate
\left(2-b-a\right)^{2}
Expand
a^{2}+2ab-4a+b^{2}-4b+4
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a^{2}+2ab-4a+b^{2}-4b+4
Square 2-a-b.
a^{2}+2ab-4a+b^{2}-4b+4
Square 2-a-b.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
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Linear equation
y = 3x + 4
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Matrix
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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Limits
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