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\left(2x-2\right)\left(1+x\right)=-1
Variable x cannot be equal to 1 since division by zero is not defined. Multiply both sides of the equation by 4\left(x-1\right), the least common multiple of 2,4-4x.
2x^{2}-2=-1
Use the distributive property to multiply 2x-2 by 1+x and combine like terms.
2x^{2}=-1+2
Add 2 to both sides.
2x^{2}=1
Add -1 and 2 to get 1.
x^{2}=\frac{1}{2}
Divide both sides by 2.
x=\frac{\sqrt{2}}{2} x=-\frac{\sqrt{2}}{2}
Take the square root of both sides of the equation.
\left(2x-2\right)\left(1+x\right)=-1
Variable x cannot be equal to 1 since division by zero is not defined. Multiply both sides of the equation by 4\left(x-1\right), the least common multiple of 2,4-4x.
2x^{2}-2=-1
Use the distributive property to multiply 2x-2 by 1+x and combine like terms.
2x^{2}-2+1=0
Add 1 to both sides.
2x^{2}-1=0
Add -2 and 1 to get -1.
x=\frac{0±\sqrt{0^{2}-4\times 2\left(-1\right)}}{2\times 2}
This equation is in standard form: ax^{2}+bx+c=0. Substitute 2 for a, 0 for b, and -1 for c in the quadratic formula, \frac{-b±\sqrt{b^{2}-4ac}}{2a}.
x=\frac{0±\sqrt{-4\times 2\left(-1\right)}}{2\times 2}
Square 0.
x=\frac{0±\sqrt{-8\left(-1\right)}}{2\times 2}
Multiply -4 times 2.
x=\frac{0±\sqrt{8}}{2\times 2}
Multiply -8 times -1.
x=\frac{0±2\sqrt{2}}{2\times 2}
Take the square root of 8.
x=\frac{0±2\sqrt{2}}{4}
Multiply 2 times 2.
x=\frac{\sqrt{2}}{2}
Now solve the equation x=\frac{0±2\sqrt{2}}{4} when ± is plus.
x=-\frac{\sqrt{2}}{2}
Now solve the equation x=\frac{0±2\sqrt{2}}{4} when ± is minus.
x=\frac{\sqrt{2}}{2} x=-\frac{\sqrt{2}}{2}
The equation is now solved.