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\left(m-1\right)m+\left(m+1\right)\times 5=\left(m-1\right)\left(m+1\right)
Variable m cannot be equal to any of the values -1,1 since division by zero is not defined. Multiply both sides of the equation by \left(m-1\right)\left(m+1\right), the least common multiple of m+1,m-1.
m^{2}-m+\left(m+1\right)\times 5=\left(m-1\right)\left(m+1\right)
Use the distributive property to multiply m-1 by m.
m^{2}-m+5m+5=\left(m-1\right)\left(m+1\right)
Use the distributive property to multiply m+1 by 5.
m^{2}+4m+5=\left(m-1\right)\left(m+1\right)
Combine -m and 5m to get 4m.
m^{2}+4m+5=m^{2}-1
Consider \left(m-1\right)\left(m+1\right). Multiplication can be transformed into difference of squares using the rule: \left(a-b\right)\left(a+b\right)=a^{2}-b^{2}. Square 1.
m^{2}+4m+5-m^{2}=-1
Subtract m^{2} from both sides.
4m+5=-1
Combine m^{2} and -m^{2} to get 0.
4m=-1-5
Subtract 5 from both sides.
4m=-6
Subtract 5 from -1 to get -6.
m=\frac{-6}{4}
Divide both sides by 4.
m=-\frac{3}{2}
Reduce the fraction \frac{-6}{4} to lowest terms by extracting and canceling out 2.