Evaluate
x^{2}+7x+2+\frac{18}{x}
Factor
\frac{x^{3}+7x^{2}+2x+18}{x}
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\frac{\left(x^{2}+7x+2\right)x}{x}+\frac{18}{x}
To add or subtract expressions, expand them to make their denominators the same. Multiply x^{2}+7x+2 times \frac{x}{x}.
\frac{\left(x^{2}+7x+2\right)x+18}{x}
Since \frac{\left(x^{2}+7x+2\right)x}{x} and \frac{18}{x} have the same denominator, add them by adding their numerators.
\frac{x^{3}+7x^{2}+2x+18}{x}
Do the multiplications in \left(x^{2}+7x+2\right)x+18.
Examples
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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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