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\left(x+2\right)\left(x+2\right)+x-2=\left(x-2\right)\left(x+2\right)
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.
\left(x+2\right)^{2}+x-2=\left(x-2\right)\left(x+2\right)
Multiply x+2 and x+2 to get \left(x+2\right)^{2}.
x^{2}+4x+4+x-2=\left(x-2\right)\left(x+2\right)
Use binomial theorem \left(a+b\right)^{2}=a^{2}+2ab+b^{2} to expand \left(x+2\right)^{2}.
x^{2}+5x+4-2=\left(x-2\right)\left(x+2\right)
Combine 4x and x to get 5x.
x^{2}+5x+2=\left(x-2\right)\left(x+2\right)
Subtract 2 from 4 to get 2.
x^{2}+5x+2=x^{2}-4
Consider \left(x-2\right)\left(x+2\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 2.
x^{2}+5x+2-x^{2}=-4
Subtract x^{2} from both sides.
5x+2=-4
Combine x^{2} and -x^{2} to get 0.
5x=-4-2
Subtract 2 from both sides.
5x=-6
Subtract 2 from -4 to get -6.
x=\frac{-6}{5}
Divide both sides by 5.
x=-\frac{6}{5}
Fraction \frac{-6}{5} can be rewritten as -\frac{6}{5} by extracting the negative sign.