Factor
\frac{38-x^{2}}{2}
Evaluate
-\frac{x^{2}}{2}+19
Graph
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\frac{38-x^{2}}{2}
Factor out \frac{1}{2}. Polynomial 38-x^{2} is not factored since it does not have any rational roots.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
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Matrix
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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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