(x-3)(4x-12)=0

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Solution for (x-3)(4x-12)=0 equation:


Simplifying
(x + -3)(4x + -12) = 0

Reorder the terms:
(-3 + x)(4x + -12) = 0

Reorder the terms:
(-3 + x)(-12 + 4x) = 0

Multiply (-3 + x) * (-12 + 4x)
(-3(-12 + 4x) + x(-12 + 4x)) = 0
((-12 * -3 + 4x * -3) + x(-12 + 4x)) = 0
((36 + -12x) + x(-12 + 4x)) = 0
(36 + -12x + (-12 * x + 4x * x)) = 0
(36 + -12x + (-12x + 4x2)) = 0

Combine like terms: -12x + -12x = -24x
(36 + -24x + 4x2) = 0

Solving
36 + -24x + 4x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '4'.
4(9 + -6x + x2) = 0

Factor a trinomial.
4((3 + -1x)(3 + -1x)) = 0

Ignore the factor 4.

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 '(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 = {3, 3}

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