3x^2+12=4x^2+11x

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Solution for 3x^2+12=4x^2+11x equation:


Simplifying
3x2 + 12 = 4x2 + 11x

Reorder the terms:
12 + 3x2 = 4x2 + 11x

Reorder the terms:
12 + 3x2 = 11x + 4x2

Solving
12 + 3x2 = 11x + 4x2

Solving for variable 'x'.

Reorder the terms:
12 + -11x + 3x2 + -4x2 = 11x + 4x2 + -11x + -4x2

Combine like terms: 3x2 + -4x2 = -1x2
12 + -11x + -1x2 = 11x + 4x2 + -11x + -4x2

Reorder the terms:
12 + -11x + -1x2 = 11x + -11x + 4x2 + -4x2

Combine like terms: 11x + -11x = 0
12 + -11x + -1x2 = 0 + 4x2 + -4x2
12 + -11x + -1x2 = 4x2 + -4x2

Combine like terms: 4x2 + -4x2 = 0
12 + -11x + -1x2 = 0

Factor a trinomial.
(1 + -1x)(12 + x) = 0

Subproblem 1

Set the factor '(1 + -1x)' equal to zero and attempt to solve: Simplifying 1 + -1x = 0 Solving 1 + -1x = 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 + -1x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -1x = 0 + -1 -1x = 0 + -1 Combine like terms: 0 + -1 = -1 -1x = -1 Divide each side by '-1'. x = 1 Simplifying x = 1

Subproblem 2

Set the factor '(12 + x)' equal to zero and attempt to solve: Simplifying 12 + x = 0 Solving 12 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-12' to each side of the equation. 12 + -12 + x = 0 + -12 Combine like terms: 12 + -12 = 0 0 + x = 0 + -12 x = 0 + -12 Combine like terms: 0 + -12 = -12 x = -12 Simplifying x = -12

Solution

x = {1, -12}

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