2x^2+8=11x-4

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Solution for 2x^2+8=11x-4 equation:


Simplifying
2x2 + 8 = 11x + -4

Reorder the terms:
8 + 2x2 = 11x + -4

Reorder the terms:
8 + 2x2 = -4 + 11x

Solving
8 + 2x2 = -4 + 11x

Solving for variable 'x'.

Reorder the terms:
8 + 4 + -11x + 2x2 = -4 + 11x + 4 + -11x

Combine like terms: 8 + 4 = 12
12 + -11x + 2x2 = -4 + 11x + 4 + -11x

Reorder the terms:
12 + -11x + 2x2 = -4 + 4 + 11x + -11x

Combine like terms: -4 + 4 = 0
12 + -11x + 2x2 = 0 + 11x + -11x
12 + -11x + 2x2 = 11x + -11x

Combine like terms: 11x + -11x = 0
12 + -11x + 2x2 = 0

Factor a trinomial.
(3 + -2x)(4 + -1x) = 0

Subproblem 1

Set the factor '(3 + -2x)' equal to zero and attempt to solve: Simplifying 3 + -2x = 0 Solving 3 + -2x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -2x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -2x = 0 + -3 -2x = 0 + -3 Combine like terms: 0 + -3 = -3 -2x = -3 Divide each side by '-2'. x = 1.5 Simplifying x = 1.5

Subproblem 2

Set the factor '(4 + -1x)' equal to zero and attempt to solve: Simplifying 4 + -1x = 0 Solving 4 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -1x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1x = 0 + -4 -1x = 0 + -4 Combine like terms: 0 + -4 = -4 -1x = -4 Divide each side by '-1'. x = 4 Simplifying x = 4

Solution

x = {1.5, 4}

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