X^2-3x-9=31

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Solution for X^2-3x-9=31 equation:


Simplifying
X2 + -3x + -9 = 31

Reorder the terms:
-9 + X2 + -3x = 31

Solving
-9 + X2 + -3x = 31

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 + X2 + 9 + -3x = 31 + 9

Reorder the terms:
-9 + 9 + X2 + -3x = 31 + 9

Combine like terms: -9 + 9 = 0
0 + X2 + -3x = 31 + 9
X2 + -3x = 31 + 9

Combine like terms: 31 + 9 = 40
X2 + -3x = 40

Add '3x' to each side of the equation.
X2 + -3x + 3x = 40 + 3x

Combine like terms: -3x + 3x = 0
X2 + 0 = 40 + 3x
X2 = 40 + 3x

Simplifying
X2 = 40 + 3x

Reorder the terms:
-40 + X2 + -3x = 40 + 3x + -40 + -3x

Reorder the terms:
-40 + X2 + -3x = 40 + -40 + 3x + -3x

Combine like terms: 40 + -40 = 0
-40 + X2 + -3x = 0 + 3x + -3x
-40 + X2 + -3x = 3x + -3x

Combine like terms: 3x + -3x = 0
-40 + X2 + -3x = 0

The solution to this equation could not be determined.

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