(5x+12)(x-3)=

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Solution for (5x+12)(x-3)= equation:


Simplifying
(5x + 12)(x + -3) = 0

Reorder the terms:
(12 + 5x)(x + -3) = 0

Reorder the terms:
(12 + 5x)(-3 + x) = 0

Multiply (12 + 5x) * (-3 + x)
(12(-3 + x) + 5x * (-3 + x)) = 0
((-3 * 12 + x * 12) + 5x * (-3 + x)) = 0
((-36 + 12x) + 5x * (-3 + x)) = 0
(-36 + 12x + (-3 * 5x + x * 5x)) = 0
(-36 + 12x + (-15x + 5x2)) = 0

Combine like terms: 12x + -15x = -3x
(-36 + -3x + 5x2) = 0

Solving
-36 + -3x + 5x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-12 + -5x)(3 + -1x) = 0

Subproblem 1

Set the factor '(-12 + -5x)' equal to zero and attempt to solve: Simplifying -12 + -5x = 0 Solving -12 + -5x = 0 Move all terms containing x to the left, all other terms to the right. Add '12' to each side of the equation. -12 + 12 + -5x = 0 + 12 Combine like terms: -12 + 12 = 0 0 + -5x = 0 + 12 -5x = 0 + 12 Combine like terms: 0 + 12 = 12 -5x = 12 Divide each side by '-5'. x = -2.4 Simplifying x = -2.4

Subproblem 2

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

Solution

x = {-2.4, 3}

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