Evaluate
-3x^{4}+4x+4-\frac{5}{x^{2}}
Factor
-\frac{\left(x-1\right)\left(3x^{5}+3x^{4}+3x^{3}-x^{2}-5x-5\right)}{x^{2}}
Graph
Share
Copied to clipboard
-3x^{4}+4x-\frac{5}{x^{2}}+4
Combine 6x and -2x to get 4x.
\frac{\left(-3x^{4}+4x+4\right)x^{2}}{x^{2}}-\frac{5}{x^{2}}
To add or subtract expressions, expand them to make their denominators the same. Multiply -3x^{4}+4x+4 times \frac{x^{2}}{x^{2}}.
\frac{\left(-3x^{4}+4x+4\right)x^{2}-5}{x^{2}}
Since \frac{\left(-3x^{4}+4x+4\right)x^{2}}{x^{2}} and \frac{5}{x^{2}} have the same denominator, subtract them by subtracting their numerators.
\frac{-3x^{6}+4x^{3}+4x^{2}-5}{x^{2}}
Do the multiplications in \left(-3x^{4}+4x+4\right)x^{2}-5.
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}