1x^2-9=315

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Solution for 1x^2-9=315 equation: 


Simplifying
1x2 + -9 = 315

Reorder the terms:
-9 + 1x2 = 315

Solving
-9 + 1x2 = 315

Solving for variable 'x'.

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

Add '9' to each side of the equation.
-9 + 9 + 1x2 = 315 + 9

Combine like terms: -9 + 9 = 0
0 + 1x2 = 315 + 9
1x2 = 315 + 9

Combine like terms: 315 + 9 = 324
1x2 = 324

Divide each side by '1'.
x2 = 324

Simplifying
x2 = 324

Take the square root of each side:
x = {-18, 18}

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