F(x)=(x)(x)-4

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Solution for F(x)=(x)(x)-4 equation: 



(F)=(F)(F)-4

We move all terms to the left:

(F)-((F)(F)-4)=0

We get rid of parentheses

F-FF+4=0

We move all terms containing F to the left, all other terms to the right

F-FF=-4

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