Evaluate
-\left(-x+\frac{1}{x}\right)^{2}
Expand
-x^{2}+2-\frac{1}{x^{2}}
Graph
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\left(\frac{1}{x}-\frac{xx}{x}\right)\left(x-\frac{1}{x}\right)
To add or subtract expressions, expand them to make their denominators the same. Multiply x times \frac{x}{x}.
\frac{1-xx}{x}\left(x-\frac{1}{x}\right)
Since \frac{1}{x} and \frac{xx}{x} have the same denominator, subtract them by subtracting their numerators.
\frac{1-x^{2}}{x}\left(x-\frac{1}{x}\right)
Do the multiplications in 1-xx.
\frac{1-x^{2}}{x}\left(\frac{xx}{x}-\frac{1}{x}\right)
To add or subtract expressions, expand them to make their denominators the same. Multiply x times \frac{x}{x}.
\frac{1-x^{2}}{x}\times \frac{xx-1}{x}
Since \frac{xx}{x} and \frac{1}{x} have the same denominator, subtract them by subtracting their numerators.
\frac{1-x^{2}}{x}\times \frac{x^{2}-1}{x}
Do the multiplications in xx-1.
\frac{\left(1-x^{2}\right)\left(x^{2}-1\right)}{xx}
Multiply \frac{1-x^{2}}{x} times \frac{x^{2}-1}{x} by multiplying numerator times numerator and denominator times denominator.
\frac{\left(1-x^{2}\right)\left(x^{2}-1\right)}{x^{2}}
Multiply x and x to get x^{2}.
\frac{x^{2}-1-x^{4}+x^{2}}{x^{2}}
Apply the distributive property by multiplying each term of 1-x^{2} by each term of x^{2}-1.
\frac{2x^{2}-1-x^{4}}{x^{2}}
Combine x^{2} and x^{2} to get 2x^{2}.
\left(\frac{1}{x}-\frac{xx}{x}\right)\left(x-\frac{1}{x}\right)
To add or subtract expressions, expand them to make their denominators the same. Multiply x times \frac{x}{x}.
\frac{1-xx}{x}\left(x-\frac{1}{x}\right)
Since \frac{1}{x} and \frac{xx}{x} have the same denominator, subtract them by subtracting their numerators.
\frac{1-x^{2}}{x}\left(x-\frac{1}{x}\right)
Do the multiplications in 1-xx.
\frac{1-x^{2}}{x}\left(\frac{xx}{x}-\frac{1}{x}\right)
To add or subtract expressions, expand them to make their denominators the same. Multiply x times \frac{x}{x}.
\frac{1-x^{2}}{x}\times \frac{xx-1}{x}
Since \frac{xx}{x} and \frac{1}{x} have the same denominator, subtract them by subtracting their numerators.
\frac{1-x^{2}}{x}\times \frac{x^{2}-1}{x}
Do the multiplications in xx-1.
\frac{\left(1-x^{2}\right)\left(x^{2}-1\right)}{xx}
Multiply \frac{1-x^{2}}{x} times \frac{x^{2}-1}{x} by multiplying numerator times numerator and denominator times denominator.
\frac{\left(1-x^{2}\right)\left(x^{2}-1\right)}{x^{2}}
Multiply x and x to get x^{2}.
\frac{x^{2}-1-x^{4}+x^{2}}{x^{2}}
Apply the distributive property by multiplying each term of 1-x^{2} by each term of x^{2}-1.
\frac{2x^{2}-1-x^{4}}{x^{2}}
Combine x^{2} and x^{2} to get 2x^{2}.
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}