2x^2-4=y

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Solution for 2x^2-4=y equation:


Simplifying
2x2 + -4 = y

Reorder the terms:
-4 + 2x2 = y

Solving
-4 + 2x2 = y

Solving for variable 'x'.

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

Add '4' to each side of the equation.
-4 + 4 + 2x2 = 4 + y

Combine like terms: -4 + 4 = 0
0 + 2x2 = 4 + y
2x2 = 4 + y

Divide each side by '2'.
x2 = 2 + 0.5y

Simplifying
x2 = 2 + 0.5y

Reorder the terms:
-2 + x2 + -0.5y = 2 + 0.5y + -2 + -0.5y

Reorder the terms:
-2 + x2 + -0.5y = 2 + -2 + 0.5y + -0.5y

Combine like terms: 2 + -2 = 0
-2 + x2 + -0.5y = 0 + 0.5y + -0.5y
-2 + x2 + -0.5y = 0.5y + -0.5y

Combine like terms: 0.5y + -0.5y = 0.0
-2 + x2 + -0.5y = 0.0

The solution to this equation could not be determined.

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