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\left(m+1\right)\left(2m-1\right)=\left(2m+1\right)\left(1-m\right)
Variable m cannot be equal to any of the values -1,-\frac{1}{2} since division by zero is not defined. Multiply both sides of the equation by \left(m+1\right)\left(2m+1\right), the least common multiple of 2m+1,1+m.
2m^{2}+m-1=\left(2m+1\right)\left(1-m\right)
Use the distributive property to multiply m+1 by 2m-1 and combine like terms.
2m^{2}+m-1=m-2m^{2}+1
Use the distributive property to multiply 2m+1 by 1-m and combine like terms.
2m^{2}+m-1-m=-2m^{2}+1
Subtract m from both sides.
2m^{2}-1=-2m^{2}+1
Combine m and -m to get 0.
2m^{2}-1+2m^{2}=1
Add 2m^{2} to both sides.
4m^{2}-1=1
Combine 2m^{2} and 2m^{2} to get 4m^{2}.
4m^{2}=1+1
Add 1 to both sides.
4m^{2}=2
Add 1 and 1 to get 2.
m^{2}=\frac{2}{4}
Divide both sides by 4.
m^{2}=\frac{1}{2}
Reduce the fraction \frac{2}{4} to lowest terms by extracting and canceling out 2.
m=\frac{\sqrt{2}}{2} m=-\frac{\sqrt{2}}{2}
Take the square root of both sides of the equation.
\left(m+1\right)\left(2m-1\right)=\left(2m+1\right)\left(1-m\right)
Variable m cannot be equal to any of the values -1,-\frac{1}{2} since division by zero is not defined. Multiply both sides of the equation by \left(m+1\right)\left(2m+1\right), the least common multiple of 2m+1,1+m.
2m^{2}+m-1=\left(2m+1\right)\left(1-m\right)
Use the distributive property to multiply m+1 by 2m-1 and combine like terms.
2m^{2}+m-1=m-2m^{2}+1
Use the distributive property to multiply 2m+1 by 1-m and combine like terms.
2m^{2}+m-1-m=-2m^{2}+1
Subtract m from both sides.
2m^{2}-1=-2m^{2}+1
Combine m and -m to get 0.
2m^{2}-1+2m^{2}=1
Add 2m^{2} to both sides.
4m^{2}-1=1
Combine 2m^{2} and 2m^{2} to get 4m^{2}.
4m^{2}-1-1=0
Subtract 1 from both sides.
4m^{2}-2=0
Subtract 1 from -1 to get -2.
m=\frac{0±\sqrt{0^{2}-4\times 4\left(-2\right)}}{2\times 4}
This equation is in standard form: ax^{2}+bx+c=0. Substitute 4 for a, 0 for b, and -2 for c in the quadratic formula, \frac{-b±\sqrt{b^{2}-4ac}}{2a}.
m=\frac{0±\sqrt{-4\times 4\left(-2\right)}}{2\times 4}
Square 0.
m=\frac{0±\sqrt{-16\left(-2\right)}}{2\times 4}
Multiply -4 times 4.
m=\frac{0±\sqrt{32}}{2\times 4}
Multiply -16 times -2.
m=\frac{0±4\sqrt{2}}{2\times 4}
Take the square root of 32.
m=\frac{0±4\sqrt{2}}{8}
Multiply 2 times 4.
m=\frac{\sqrt{2}}{2}
Now solve the equation m=\frac{0±4\sqrt{2}}{8} when ± is plus.
m=-\frac{\sqrt{2}}{2}
Now solve the equation m=\frac{0±4\sqrt{2}}{8} when ± is minus.
m=\frac{\sqrt{2}}{2} m=-\frac{\sqrt{2}}{2}
The equation is now solved.