(3x^2+5x-12)-(x^2+4x+9)=5x^2+x-18

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Solution for (3x^2+5x-12)-(x^2+4x+9)=5x^2+x-18 equation:


Simplifying
(3x2 + 5x + -12) + -1(x2 + 4x + 9) = 5x2 + x + -18

Reorder the terms:
(-12 + 5x + 3x2) + -1(x2 + 4x + 9) = 5x2 + x + -18

Remove parenthesis around (-12 + 5x + 3x2)
-12 + 5x + 3x2 + -1(x2 + 4x + 9) = 5x2 + x + -18

Reorder the terms:
-12 + 5x + 3x2 + -1(9 + 4x + x2) = 5x2 + x + -18
-12 + 5x + 3x2 + (9 * -1 + 4x * -1 + x2 * -1) = 5x2 + x + -18
-12 + 5x + 3x2 + (-9 + -4x + -1x2) = 5x2 + x + -18

Reorder the terms:
-12 + -9 + 5x + -4x + 3x2 + -1x2 = 5x2 + x + -18

Combine like terms: -12 + -9 = -21
-21 + 5x + -4x + 3x2 + -1x2 = 5x2 + x + -18

Combine like terms: 5x + -4x = 1x
-21 + 1x + 3x2 + -1x2 = 5x2 + x + -18

Combine like terms: 3x2 + -1x2 = 2x2
-21 + 1x + 2x2 = 5x2 + x + -18

Reorder the terms:
-21 + 1x + 2x2 = -18 + x + 5x2

Solving
-21 + 1x + 2x2 = -18 + x + 5x2

Solving for variable 'x'.

Reorder the terms:
-21 + 18 + 1x + -1x + 2x2 + -5x2 = -18 + x + 5x2 + 18 + -1x + -5x2

Combine like terms: -21 + 18 = -3
-3 + 1x + -1x + 2x2 + -5x2 = -18 + x + 5x2 + 18 + -1x + -5x2

Combine like terms: 1x + -1x = 0
-3 + 0 + 2x2 + -5x2 = -18 + x + 5x2 + 18 + -1x + -5x2
-3 + 2x2 + -5x2 = -18 + x + 5x2 + 18 + -1x + -5x2

Combine like terms: 2x2 + -5x2 = -3x2
-3 + -3x2 = -18 + x + 5x2 + 18 + -1x + -5x2

Reorder the terms:
-3 + -3x2 = -18 + 18 + x + -1x + 5x2 + -5x2

Combine like terms: -18 + 18 = 0
-3 + -3x2 = 0 + x + -1x + 5x2 + -5x2
-3 + -3x2 = x + -1x + 5x2 + -5x2

Combine like terms: x + -1x = 0
-3 + -3x2 = 0 + 5x2 + -5x2
-3 + -3x2 = 5x2 + -5x2

Combine like terms: 5x2 + -5x2 = 0
-3 + -3x2 = 0

Factor out the Greatest Common Factor (GCF), '-3'.
-3(1 + x2) = 0

Ignore the factor -3.

Subproblem 1

Set the factor '(1 + x2)' equal to zero and attempt to solve: Simplifying 1 + x2 = 0 Solving 1 + x2 = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x2 = 0 + -1 Combine like terms: 1 + -1 = 0 0 + x2 = 0 + -1 x2 = 0 + -1 Combine like terms: 0 + -1 = -1 x2 = -1 Simplifying x2 = -1 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

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