25-x^2=9+x^2

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Solution for 25-x^2=9+x^2 equation:


Simplifying
25 + -1x2 = 9 + x2

Solving
25 + -1x2 = 9 + 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.
25 + -1x2 + -1x2 = 9 + x2 + -1x2

Combine like terms: -1x2 + -1x2 = -2x2
25 + -2x2 = 9 + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
25 + -2x2 = 9 + 0
25 + -2x2 = 9

Add '-25' to each side of the equation.
25 + -25 + -2x2 = 9 + -25

Combine like terms: 25 + -25 = 0
0 + -2x2 = 9 + -25
-2x2 = 9 + -25

Combine like terms: 9 + -25 = -16
-2x2 = -16

Divide each side by '-2'.
x2 = 8

Simplifying
x2 = 8

Take the square root of each side:
x = {-2.828427125, 2.828427125}

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