(-2x-1)(2x+3)=0

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Solution for (-2x-1)(2x+3)=0 equation:


Simplifying
(-2x + -1)(2x + 3) = 0

Reorder the terms:
(-1 + -2x)(2x + 3) = 0

Reorder the terms:
(-1 + -2x)(3 + 2x) = 0

Multiply (-1 + -2x) * (3 + 2x)
(-1(3 + 2x) + -2x * (3 + 2x)) = 0
((3 * -1 + 2x * -1) + -2x * (3 + 2x)) = 0
((-3 + -2x) + -2x * (3 + 2x)) = 0
(-3 + -2x + (3 * -2x + 2x * -2x)) = 0
(-3 + -2x + (-6x + -4x2)) = 0

Combine like terms: -2x + -6x = -8x
(-3 + -8x + -4x2) = 0

Solving
-3 + -8x + -4x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '-1'.
-1(3 + 8x + 4x2) = 0

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

Ignore the factor -1.

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 '(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

Solution

x = {-1.5, -0.5}

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