(3x-5)(x+2)=-8

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Solution for (3x-5)(x+2)=-8 equation:


Simplifying
(3x + -5)(x + 2) = -8

Reorder the terms:
(-5 + 3x)(x + 2) = -8

Reorder the terms:
(-5 + 3x)(2 + x) = -8

Multiply (-5 + 3x) * (2 + x)
(-5(2 + x) + 3x * (2 + x)) = -8
((2 * -5 + x * -5) + 3x * (2 + x)) = -8
((-10 + -5x) + 3x * (2 + x)) = -8
(-10 + -5x + (2 * 3x + x * 3x)) = -8
(-10 + -5x + (6x + 3x2)) = -8

Combine like terms: -5x + 6x = 1x
(-10 + 1x + 3x2) = -8

Solving
-10 + 1x + 3x2 = -8

Solving for variable 'x'.

Reorder the terms:
-10 + 8 + 1x + 3x2 = -8 + 8

Combine like terms: -10 + 8 = -2
-2 + 1x + 3x2 = -8 + 8

Combine like terms: -8 + 8 = 0
-2 + 1x + 3x2 = 0

Factor a trinomial.
(-1 + -1x)(2 + -3x) = 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 '(2 + -3x)' equal to zero and attempt to solve: Simplifying 2 + -3x = 0 Solving 2 + -3x = 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 + -3x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -3x = 0 + -2 -3x = 0 + -2 Combine like terms: 0 + -2 = -2 -3x = -2 Divide each side by '-3'. x = 0.6666666667 Simplifying x = 0.6666666667

Solution

x = {-1, 0.6666666667}

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