Evaluate
3x^{3}-x^{2}+7x-1+\frac{2}{x}
Factor
\frac{3x^{4}-x^{3}+7x^{2}-x+2}{x}
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\frac{\left(3x^{3}-x^{2}+7x-1\right)x}{x}+\frac{2}{x}
To add or subtract expressions, expand them to make their denominators the same. Multiply 3x^{3}-x^{2}+7x-1 times \frac{x}{x}.
\frac{\left(3x^{3}-x^{2}+7x-1\right)x+2}{x}
Since \frac{\left(3x^{3}-x^{2}+7x-1\right)x}{x} and \frac{2}{x} have the same denominator, add them by adding their numerators.
\frac{3x^{4}-x^{3}+7x^{2}-x+2}{x}
Do the multiplications in \left(3x^{3}-x^{2}+7x-1\right)x+2.
Examples
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Matrix
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Simultaneous equation
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Integration
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Limits
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