2x^2-5x-2=-4

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Solution for 2x^2-5x-2=-4 equation:


Simplifying
2x2 + -5x + -2 = -4

Reorder the terms:
-2 + -5x + 2x2 = -4

Solving
-2 + -5x + 2x2 = -4

Solving for variable 'x'.

Reorder the terms:
-2 + 4 + -5x + 2x2 = -4 + 4

Combine like terms: -2 + 4 = 2
2 + -5x + 2x2 = -4 + 4

Combine like terms: -4 + 4 = 0
2 + -5x + 2x2 = 0

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

Subproblem 1

Set the factor '(1 + -2x)' equal to zero and attempt to solve: Simplifying 1 + -2x = 0 Solving 1 + -2x = 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 + -2x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -2x = 0 + -1 -2x = 0 + -1 Combine like terms: 0 + -1 = -1 -2x = -1 Divide each side by '-2'. x = 0.5 Simplifying x = 0.5

Subproblem 2

Set the factor '(2 + -1x)' equal to zero and attempt to solve: Simplifying 2 + -1x = 0 Solving 2 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1x = 0 + -2 -1x = 0 + -2 Combine like terms: 0 + -2 = -2 -1x = -2 Divide each side by '-1'. x = 2 Simplifying x = 2

Solution

x = {0.5, 2}

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