(15x+4)(12x+6)=

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Solution for (15x+4)(12x+6)= equation:


Simplifying
(15x + 4)(12x + 6) = 0

Reorder the terms:
(4 + 15x)(12x + 6) = 0

Reorder the terms:
(4 + 15x)(6 + 12x) = 0

Multiply (4 + 15x) * (6 + 12x)
(4(6 + 12x) + 15x * (6 + 12x)) = 0
((6 * 4 + 12x * 4) + 15x * (6 + 12x)) = 0
((24 + 48x) + 15x * (6 + 12x)) = 0
(24 + 48x + (6 * 15x + 12x * 15x)) = 0
(24 + 48x + (90x + 180x2)) = 0

Combine like terms: 48x + 90x = 138x
(24 + 138x + 180x2) = 0

Solving
24 + 138x + 180x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '6'.
6(4 + 23x + 30x2) = 0

Factor a trinomial.
6((1 + 2x)(4 + 15x)) = 0

Ignore the factor 6.

Subproblem 1

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

Subproblem 2

Set the factor '(4 + 15x)' equal to zero and attempt to solve: Simplifying 4 + 15x = 0 Solving 4 + 15x = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + 15x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + 15x = 0 + -4 15x = 0 + -4 Combine like terms: 0 + -4 = -4 15x = -4 Divide each side by '15'. x = -0.2666666667 Simplifying x = -0.2666666667

Solution

x = {-0.5, -0.2666666667}

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