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

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


Simplifying
(x + 3)(3x2 + 5x) = 0

Reorder the terms:
(3 + x)(3x2 + 5x) = 0

Reorder the terms:
(3 + x)(5x + 3x2) = 0

Multiply (3 + x) * (5x + 3x2)
(3(5x + 3x2) + x(5x + 3x2)) = 0
((5x * 3 + 3x2 * 3) + x(5x + 3x2)) = 0
((15x + 9x2) + x(5x + 3x2)) = 0
(15x + 9x2 + (5x * x + 3x2 * x)) = 0
(15x + 9x2 + (5x2 + 3x3)) = 0

Combine like terms: 9x2 + 5x2 = 14x2
(15x + 14x2 + 3x3) = 0

Solving
15x + 14x2 + 3x3 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), 'x'.
x(15 + 14x + 3x2) = 0

Factor a trinomial.
x((3 + x)(5 + 3x)) = 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 + 3x)' equal to zero and attempt to solve: Simplifying 5 + 3x = 0 Solving 5 + 3x = 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 + 3x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + 3x = 0 + -5 3x = 0 + -5 Combine like terms: 0 + -5 = -5 3x = -5 Divide each side by '3'. x = -1.666666667 Simplifying x = -1.666666667

Solution

x = {0, -3, -1.666666667}

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