(3-2x)(x+4)=0

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Solution for (3-2x)(x+4)=0 equation:


Simplifying
(3 + -2x)(x + 4) = 0

Reorder the terms:
(3 + -2x)(4 + x) = 0

Multiply (3 + -2x) * (4 + x)
(3(4 + x) + -2x * (4 + x)) = 0
((4 * 3 + x * 3) + -2x * (4 + x)) = 0
((12 + 3x) + -2x * (4 + x)) = 0
(12 + 3x + (4 * -2x + x * -2x)) = 0
(12 + 3x + (-8x + -2x2)) = 0

Combine like terms: 3x + -8x = -5x
(12 + -5x + -2x2) = 0

Solving
12 + -5x + -2x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(3 + -2x)(4 + x) = 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 + x)' equal to zero and attempt to solve: Simplifying 4 + x = 0 Solving 4 + x = 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 + x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + x = 0 + -4 x = 0 + -4 Combine like terms: 0 + -4 = -4 x = -4 Simplifying x = -4

Solution

x = {1.5, -4}

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