2x^2-4=-15

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Solution for 2x^2-4=-15 equation:


Simplifying
2x2 + -4 = -15

Reorder the terms:
-4 + 2x2 = -15

Solving
-4 + 2x2 = -15

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 = -15 + 4

Combine like terms: -4 + 4 = 0
0 + 2x2 = -15 + 4
2x2 = -15 + 4

Combine like terms: -15 + 4 = -11
2x2 = -11

Divide each side by '2'.
x2 = -5.5

Simplifying
x2 = -5.5

Reorder the terms:
5.5 + x2 = -5.5 + 5.5

Combine like terms: -5.5 + 5.5 = 0.0
5.5 + x2 = 0.0

The solution to this equation could not be determined.

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