4(3x-7)(6x+7)=0

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Solution for 4(3x-7)(6x+7)=0 equation: 


Simplifying
4(3x + -7)(6x + 7) = 0

Reorder the terms:
4(-7 + 3x)(6x + 7) = 0

Reorder the terms:
4(-7 + 3x)(7 + 6x) = 0

Multiply (-7 + 3x) * (7 + 6x)
4(-7(7 + 6x) + 3x * (7 + 6x)) = 0
4((7 * -7 + 6x * -7) + 3x * (7 + 6x)) = 0
4((-49 + -42x) + 3x * (7 + 6x)) = 0
4(-49 + -42x + (7 * 3x + 6x * 3x)) = 0
4(-49 + -42x + (21x + 18x2)) = 0

Combine like terms: -42x + 21x = -21x
4(-49 + -21x + 18x2) = 0
(-49 * 4 + -21x * 4 + 18x2 * 4) = 0
(-196 + -84x + 72x2) = 0

Solving
-196 + -84x + 72x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '4'.
4(-49 + -21x + 18x2) = 0

Factor a trinomial.
4((-7 + -6x)(7 + -3x)) = 0

Ignore the factor 4.

Subproblem 1
Set the factor '(-7 + -6x)' equal to zero and attempt to solve:

Simplifying
-7 + -6x = 0

Solving
-7 + -6x = 0

Move all terms containing x to the left, all other terms to the right.

Add '7' to each side of the equation.
-7 + 7 + -6x = 0 + 7

Combine like terms: -7 + 7 = 0
0 + -6x = 0 + 7
-6x = 0 + 7

Combine like terms: 0 + 7 = 7
-6x = 7

Divide each side by '-6'.
x = -1.166666667

Simplifying
x = -1.166666667

Subproblem 2
Set the factor '(7 + -3x)' equal to zero and attempt to solve:

Simplifying
7 + -3x = 0

Solving
7 + -3x = 0

Move all terms containing x to the left, all other terms to the right.

Add '-7' to each side of the equation.
7 + -7 + -3x = 0 + -7

Combine like terms: 7 + -7 = 0
0 + -3x = 0 + -7
-3x = 0 + -7

Combine like terms: 0 + -7 = -7
-3x = -7

Divide each side by '-3'.
x = 2.333333333

Simplifying
x = 2.333333333
Solution
x = {-1.166666667, 2.333333333}

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