3*x-18=(x+3)*(x-3)*2+x^2+3*x+9

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Solution for 3*x-18=(x+3)*(x-3)*2+x^2+3*x+9 equation: 


Simplifying
3x + -18 = (x + 3)(x + -3) * 2 + x2 + 3x + 9

Reorder the terms:
-18 + 3x = (x + 3)(x + -3) * 2 + x2 + 3x + 9

Reorder the terms:
-18 + 3x = (3 + x)(x + -3) * 2 + x2 + 3x + 9

Reorder the terms:
-18 + 3x = (3 + x)(-3 + x) * 2 + x2 + 3x + 9

Reorder the terms for easier multiplication:
-18 + 3x = 2(3 + x)(-3 + x) + x2 + 3x + 9

Multiply (3 + x) * (-3 + x)
-18 + 3x = 2(3(-3 + x) + x(-3 + x)) + x2 + 3x + 9
-18 + 3x = 2((-3 * 3 + x * 3) + x(-3 + x)) + x2 + 3x + 9
-18 + 3x = 2((-9 + 3x) + x(-3 + x)) + x2 + 3x + 9
-18 + 3x = 2(-9 + 3x + (-3 * x + x * x)) + x2 + 3x + 9
-18 + 3x = 2(-9 + 3x + (-3x + x2)) + x2 + 3x + 9

Combine like terms: 3x + -3x = 0
-18 + 3x = 2(-9 + 0 + x2) + x2 + 3x + 9
-18 + 3x = 2(-9 + x2) + x2 + 3x + 9
-18 + 3x = (-9 * 2 + x2 * 2) + x2 + 3x + 9
-18 + 3x = (-18 + 2x2) + x2 + 3x + 9

Reorder the terms:
-18 + 3x = -18 + 9 + 3x + 2x2 + x2

Combine like terms: -18 + 9 = -9
-18 + 3x = -9 + 3x + 2x2 + x2

Combine like terms: 2x2 + x2 = 3x2
-18 + 3x = -9 + 3x + 3x2

Add '-3x' to each side of the equation.
-18 + 3x + -3x = -9 + 3x + -3x + 3x2

Combine like terms: 3x + -3x = 0
-18 + 0 = -9 + 3x + -3x + 3x2
-18 = -9 + 3x + -3x + 3x2

Combine like terms: 3x + -3x = 0
-18 = -9 + 0 + 3x2
-18 = -9 + 3x2

Solving
-18 = -9 + 3x2

Solving for variable 'x'.

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

Add '-3x2' to each side of the equation.
-18 + -3x2 = -9 + 3x2 + -3x2

Combine like terms: 3x2 + -3x2 = 0
-18 + -3x2 = -9 + 0
-18 + -3x2 = -9

Add '18' to each side of the equation.
-18 + 18 + -3x2 = -9 + 18

Combine like terms: -18 + 18 = 0
0 + -3x2 = -9 + 18
-3x2 = -9 + 18

Combine like terms: -9 + 18 = 9
-3x2 = 9

Divide each side by '-3'.
x2 = -3

Simplifying
x2 = -3

Reorder the terms:
3 + x2 = -3 + 3

Combine like terms: -3 + 3 = 0
3 + x2 = 0

The solution to this equation could not be determined.

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