Evaluate
\left(x+\left(-4-6i\right)\right)\left(x+\left(-4+6i\right)\right)
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x^{2}-8x-36\left(-1\right)+16
Calculate i to the power of 2 and get -1.
x^{2}-8x-\left(-36\right)+16
Multiply 36 and -1 to get -36.
x^{2}-8x+36+16
The opposite of -36 is 36.
x^{2}-8x+52
Add 36 and 16 to get 52.
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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y = 3x + 4
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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
\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
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