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

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


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

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

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

Multiply (3 + x) * (-6 + 5x)
(3(-6 + 5x) + x(-6 + 5x)) = 0
((-6 * 3 + 5x * 3) + x(-6 + 5x)) = 0
((-18 + 15x) + x(-6 + 5x)) = 0
(-18 + 15x + (-6 * x + 5x * x)) = 0
(-18 + 15x + (-6x + 5x2)) = 0

Combine like terms: 15x + -6x = 9x
(-18 + 9x + 5x2) = 0

Solving
-18 + 9x + 5x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-3 + -1x)(6 + -5x) = 0

Subproblem 1

Set the factor '(-3 + -1x)' equal to zero and attempt to solve: Simplifying -3 + -1x = 0 Solving -3 + -1x = 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 + -1x = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -1x = 0 + 3 -1x = 0 + 3 Combine like terms: 0 + 3 = 3 -1x = 3 Divide each side by '-1'. x = -3 Simplifying x = -3

Subproblem 2

Set the factor '(6 + -5x)' equal to zero and attempt to solve: Simplifying 6 + -5x = 0 Solving 6 + -5x = 0 Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + -5x = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -5x = 0 + -6 -5x = 0 + -6 Combine like terms: 0 + -6 = -6 -5x = -6 Divide each side by '-5'. x = 1.2 Simplifying x = 1.2

Solution

x = {-3, 1.2}

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