y=x*x-4

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Solution for y=x*x-4 equation: 


Simplifying
y = x * x + -4

Multiply x * x
y = x2 + -4

Reorder the terms:
y = -4 + x2

Solving
y = -4 + x2

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Simplifying
y = -4 + x2

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