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\left(x+2\right)\left(x-1\right)=x-2
Variable x cannot be equal to any of the values -2,2 since division by zero is not defined. Multiply both sides of the equation by \left(x-2\right)\left(x+2\right), the least common multiple of x-2,x+2.
x^{2}+x-2=x-2
Use the distributive property to multiply x+2 by x-1 and combine like terms.
x^{2}+x-2-x=-2
Subtract x from both sides.
x^{2}-2=-2
Combine x and -x to get 0.
x^{2}=-2+2
Add 2 to both sides.
x^{2}=0
Add -2 and 2 to get 0.
x=0 x=0
Take the square root of both sides of the equation.
x=0
The equation is now solved. Solutions are the same.
\left(x+2\right)\left(x-1\right)=x-2
Variable x cannot be equal to any of the values -2,2 since division by zero is not defined. Multiply both sides of the equation by \left(x-2\right)\left(x+2\right), the least common multiple of x-2,x+2.
x^{2}+x-2=x-2
Use the distributive property to multiply x+2 by x-1 and combine like terms.
x^{2}+x-2-x=-2
Subtract x from both sides.
x^{2}-2=-2
Combine x and -x to get 0.
x^{2}-2+2=0
Add 2 to both sides.
x^{2}=0
Add -2 and 2 to get 0.
x=\frac{0±\sqrt{0^{2}}}{2}
This equation is in standard form: ax^{2}+bx+c=0. Substitute 1 for a, 0 for b, and 0 for c in the quadratic formula, \frac{-b±\sqrt{b^{2}-4ac}}{2a}.
x=\frac{0±0}{2}
Take the square root of 0^{2}.
x=0
Divide 0 by 2.