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\left(x-2\right)\times 3+\left(x+2\right)x=\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.
3x-6+\left(x+2\right)x=\left(x-2\right)\left(x+2\right)
Use the distributive property to multiply x-2 by 3.
3x-6+x^{2}+2x=\left(x-2\right)\left(x+2\right)
Use the distributive property to multiply x+2 by x.
5x-6+x^{2}=\left(x-2\right)\left(x+2\right)
Combine 3x and 2x to get 5x.
5x-6+x^{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.
5x-6+x^{2}-x^{2}=-4
Subtract x^{2} from both sides.
5x-6=-4
Combine x^{2} and -x^{2} to get 0.
5x=-4+6
Add 6 to both sides.
5x=2
Add -4 and 6 to get 2.
x=\frac{2}{5}
Divide both sides by 5.