(4x-1)(3x+12)=0

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Solution for (4x-1)(3x+12)=0 equation: 


Simplifying
(4x + -1)(3x + 12) = 0

Reorder the terms:
(-1 + 4x)(3x + 12) = 0

Reorder the terms:
(-1 + 4x)(12 + 3x) = 0

Multiply (-1 + 4x) * (12 + 3x)
(-1(12 + 3x) + 4x * (12 + 3x)) = 0
((12 * -1 + 3x * -1) + 4x * (12 + 3x)) = 0
((-12 + -3x) + 4x * (12 + 3x)) = 0
(-12 + -3x + (12 * 4x + 3x * 4x)) = 0
(-12 + -3x + (48x + 12x2)) = 0

Combine like terms: -3x + 48x = 45x
(-12 + 45x + 12x2) = 0

Solving
-12 + 45x + 12x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3'.
3(-4 + 15x + 4x2) = 0

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

Ignore the factor 3.

Subproblem 1
Set the factor '(-4 + -1x)' equal to zero and attempt to solve:

Simplifying
-4 + -1x = 0

Solving
-4 + -1x = 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 + -1x = 0 + 4

Combine like terms: -4 + 4 = 0
0 + -1x = 0 + 4
-1x = 0 + 4

Combine like terms: 0 + 4 = 4
-1x = 4

Divide each side by '-1'.
x = -4

Simplifying
x = -4

Subproblem 2
Set the factor '(1 + -4x)' equal to zero and attempt to solve:

Simplifying
1 + -4x = 0

Solving
1 + -4x = 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 + -4x = 0 + -1

Combine like terms: 1 + -1 = 0
0 + -4x = 0 + -1
-4x = 0 + -1

Combine like terms: 0 + -1 = -1
-4x = -1

Divide each side by '-4'.
x = 0.25

Simplifying
x = 0.25
Solution
x = {-4, 0.25}

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