(4x+3)(x+5)=0

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Solution for (4x+3)(x+5)=0 equation:


Simplifying
(4x + 3)(x + 5) = 0

Reorder the terms:
(3 + 4x)(x + 5) = 0

Reorder the terms:
(3 + 4x)(5 + x) = 0

Multiply (3 + 4x) * (5 + x)
(3(5 + x) + 4x * (5 + x)) = 0
((5 * 3 + x * 3) + 4x * (5 + x)) = 0
((15 + 3x) + 4x * (5 + x)) = 0
(15 + 3x + (5 * 4x + x * 4x)) = 0
(15 + 3x + (20x + 4x2)) = 0

Combine like terms: 3x + 20x = 23x
(15 + 23x + 4x2) = 0

Solving
15 + 23x + 4x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(5 + x)(3 + 4x) = 0

Subproblem 1

Set the factor '(5 + x)' equal to zero and attempt to solve: Simplifying 5 + x = 0 Solving 5 + x = 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 + x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + x = 0 + -5 x = 0 + -5 Combine like terms: 0 + -5 = -5 x = -5 Simplifying x = -5

Subproblem 2

Set the factor '(3 + 4x)' equal to zero and attempt to solve: Simplifying 3 + 4x = 0 Solving 3 + 4x = 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 + 4x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 4x = 0 + -3 4x = 0 + -3 Combine like terms: 0 + -3 = -3 4x = -3 Divide each side by '4'. x = -0.75 Simplifying x = -0.75

Solution

x = {-5, -0.75}

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