(3x+6)(5x-1)=0

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Solution for (3x+6)(5x-1)=0 equation:


Simplifying
(3x + 6)(5x + -1) = 0

Reorder the terms:
(6 + 3x)(5x + -1) = 0

Reorder the terms:
(6 + 3x)(-1 + 5x) = 0

Multiply (6 + 3x) * (-1 + 5x)
(6(-1 + 5x) + 3x * (-1 + 5x)) = 0
((-1 * 6 + 5x * 6) + 3x * (-1 + 5x)) = 0
((-6 + 30x) + 3x * (-1 + 5x)) = 0
(-6 + 30x + (-1 * 3x + 5x * 3x)) = 0
(-6 + 30x + (-3x + 15x2)) = 0

Combine like terms: 30x + -3x = 27x
(-6 + 27x + 15x2) = 0

Solving
-6 + 27x + 15x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3'.
3(-2 + 9x + 5x2) = 0

Factor a trinomial.
3((-2 + -1x)(1 + -5x)) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(-2 + -1x)' equal to zero and attempt to solve: Simplifying -2 + -1x = 0 Solving -2 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + -1x = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -1x = 0 + 2 -1x = 0 + 2 Combine like terms: 0 + 2 = 2 -1x = 2 Divide each side by '-1'. x = -2 Simplifying x = -2

Subproblem 2

Set the factor '(1 + -5x)' equal to zero and attempt to solve: Simplifying 1 + -5x = 0 Solving 1 + -5x = 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 + -5x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -5x = 0 + -1 -5x = 0 + -1 Combine like terms: 0 + -1 = -1 -5x = -1 Divide each side by '-5'. x = 0.2 Simplifying x = 0.2

Solution

x = {-2, 0.2}

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