4-x^2=x^2-14

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Solution for 4-x^2=x^2-14 equation: 


Simplifying
4 + -1x2 = x2 + -14

Reorder the terms:
4 + -1x2 = -14 + x2

Solving
4 + -1x2 = -14 + x2

Solving for variable 'x'.

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

Add '-1x2' to each side of the equation.
4 + -1x2 + -1x2 = -14 + x2 + -1x2

Combine like terms: -1x2 + -1x2 = -2x2
4 + -2x2 = -14 + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
4 + -2x2 = -14 + 0
4 + -2x2 = -14

Add '-4' to each side of the equation.
4 + -4 + -2x2 = -14 + -4

Combine like terms: 4 + -4 = 0
0 + -2x2 = -14 + -4
-2x2 = -14 + -4

Combine like terms: -14 + -4 = -18
-2x2 = -18

Divide each side by '-2'.
x2 = 9

Simplifying
x2 = 9

Take the square root of each side:
x = {-3, 3}

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