18-x^2=39

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Solution for 18-x^2=39 equation:


Simplifying
18 + -1x2 = 39

Solving
18 + -1x2 = 39

Solving for variable 'x'.

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

Add '-18' to each side of the equation.
18 + -18 + -1x2 = 39 + -18

Combine like terms: 18 + -18 = 0
0 + -1x2 = 39 + -18
-1x2 = 39 + -18

Combine like terms: 39 + -18 = 21
-1x2 = 21

Divide each side by '-1'.
x2 = -21

Simplifying
x2 = -21

Reorder the terms:
21 + x2 = -21 + 21

Combine like terms: -21 + 21 = 0
21 + x2 = 0

The solution to this equation could not be determined.

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