2x^2-11x+8=-7

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Solution for 2x^2-11x+8=-7 equation:


Simplifying
2x2 + -11x + 8 = -7

Reorder the terms:
8 + -11x + 2x2 = -7

Solving
8 + -11x + 2x2 = -7

Solving for variable 'x'.

Reorder the terms:
8 + 7 + -11x + 2x2 = -7 + 7

Combine like terms: 8 + 7 = 15
15 + -11x + 2x2 = -7 + 7

Combine like terms: -7 + 7 = 0
15 + -11x + 2x2 = 0

Factor a trinomial.
(5 + -2x)(3 + -1x) = 0

Subproblem 1

Set the factor '(5 + -2x)' equal to zero and attempt to solve: Simplifying 5 + -2x = 0 Solving 5 + -2x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -2x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -2x = 0 + -5 -2x = 0 + -5 Combine like terms: 0 + -5 = -5 -2x = -5 Divide each side by '-2'. x = 2.5 Simplifying x = 2.5

Subproblem 2

Set the factor '(3 + -1x)' equal to zero and attempt to solve: Simplifying 3 + -1x = 0 Solving 3 + -1x = 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 + -1x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1x = 0 + -3 -1x = 0 + -3 Combine like terms: 0 + -3 = -3 -1x = -3 Divide each side by '-1'. x = 3 Simplifying x = 3

Solution

x = {2.5, 3}

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