(x*x-4)=0

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Solution for (x*x-4)=0 equation:


(x*x-4)=0

We simplify the equation to the form, which is simple to understand 
(x*x-4)=0

Remove unnecessary parentheses
*x-4=0

We move all terms containing x to the left and all other terms to the right. 
+1x=0+4

We simplify left and right side of the equation. 
+1x=+4

We divide both sides of the equation by 1 to get x. 
x=4

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