(x+3)(2x+5)x=0

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Solution for (x+3)(2x+5)x=0 equation:


Simplifying
(x + 3)(2x + 5) * x = 0

Reorder the terms:
(3 + x)(2x + 5) * x = 0

Reorder the terms:
(3 + x)(5 + 2x) * x = 0

Reorder the terms for easier multiplication:
x(3 + x)(5 + 2x) = 0

Multiply (3 + x) * (5 + 2x)
x(3(5 + 2x) + x(5 + 2x)) = 0
x((5 * 3 + 2x * 3) + x(5 + 2x)) = 0
x((15 + 6x) + x(5 + 2x)) = 0
x(15 + 6x + (5 * x + 2x * x)) = 0
x(15 + 6x + (5x + 2x2)) = 0

Combine like terms: 6x + 5x = 11x
x(15 + 11x + 2x2) = 0
(15 * x + 11x * x + 2x2 * x) = 0
(15x + 11x2 + 2x3) = 0

Solving
15x + 11x2 + 2x3 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), 'x'.
x(15 + 11x + 2x2) = 0

Factor a trinomial.
x((3 + x)(5 + 2x)) = 0

Subproblem 1

Set the factor 'x' equal to zero and attempt to solve: Simplifying x = 0 Solving x = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x = 0

Subproblem 2

Set the factor '(3 + x)' equal to zero and attempt to solve: Simplifying 3 + x = 0 Solving 3 + x = 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 + x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + x = 0 + -3 x = 0 + -3 Combine like terms: 0 + -3 = -3 x = -3 Simplifying x = -3

Subproblem 3

Set the factor '(5 + 2x)' equal to zero and attempt to solve: Simplifying 5 + 2x = 0 Solving 5 + 2x = 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 + 2x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + 2x = 0 + -5 2x = 0 + -5 Combine like terms: 0 + -5 = -5 2x = -5 Divide each side by '2'. x = -2.5 Simplifying x = -2.5

Solution

x = {0, -3, -2.5}

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