Evaluate
5x^{3}+9x^{2}+8x+\frac{10}{x}
Factor
\frac{5x^{4}+9x^{3}+8x^{2}+10}{x}
Graph
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5x^{3}+9x^{2}+8x+\frac{20}{x\times 2}
Express \frac{\frac{20}{x}}{2} as a single fraction.
\frac{\left(5x^{3}+9x^{2}+8x\right)x\times 2}{x\times 2}+\frac{20}{x\times 2}
To add or subtract expressions, expand them to make their denominators the same. Multiply 5x^{3}+9x^{2}+8x times \frac{x\times 2}{x\times 2}.
\frac{\left(5x^{3}+9x^{2}+8x\right)x\times 2+20}{x\times 2}
Since \frac{\left(5x^{3}+9x^{2}+8x\right)x\times 2}{x\times 2} and \frac{20}{x\times 2} have the same denominator, add them by adding their numerators.
\frac{10x^{4}+18x^{3}+16x^{2}+20}{x\times 2}
Do the multiplications in \left(5x^{3}+9x^{2}+8x\right)x\times 2+20.
\frac{2\left(5x^{4}+9x^{3}+8x^{2}+10\right)}{2x}
Factor the expressions that are not already factored in \frac{10x^{4}+18x^{3}+16x^{2}+20}{x\times 2}.
\frac{5x^{4}+9x^{3}+8x^{2}+10}{x}
Cancel out 2 in both numerator and denominator.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
699 * 533
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
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}