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\frac{\left(x^{2}-1\right)\left(4x+4x^{2}+4x^{3}\right)}{\left(1-x^{3}\right)\left(4x^{2}+4x\right)}
Divide \frac{x^{2}-1}{1-x^{3}} by \frac{4x^{2}+4x}{4x+4x^{2}+4x^{3}} by multiplying \frac{x^{2}-1}{1-x^{3}} by the reciprocal of \frac{4x^{2}+4x}{4x+4x^{2}+4x^{3}}.
\frac{4x\left(x-1\right)\left(x+1\right)\left(x^{2}+x+1\right)}{4x\left(x-1\right)\left(x+1\right)\left(-x^{2}-x-1\right)}
Factor the expressions that are not already factored.
\frac{-4x\left(x-1\right)\left(x+1\right)\left(-x^{2}-x-1\right)}{4x\left(x-1\right)\left(x+1\right)\left(-x^{2}-x-1\right)}
Extract the negative sign in 1+x+x^{2}.
-1
Cancel out 4x\left(x-1\right)\left(x+1\right)\left(-x^{2}-x-1\right) 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}