0=(12x^2)-42x+36

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Solution for 0=(12x^2)-42x+36 equation:


Simplifying
0 = (12x2) + -42x + 36

Reorder the terms:
0 = 36 + -42x + (12x2)

Solving
0 = 36 + -42x + (12x2)

Solving for variable 'x'.

Combine like terms: 0 + -36 = -36
-36 + 42x + (-12x2) = 36 + -42x + (12x2) + -36 + 42x + (-12x2)

Reorder the terms:
-36 + 42x + (-12x2) = 36 + -36 + -42x + 42x + (12x2) + (-12x2)

Combine like terms: 36 + -36 = 0
-36 + 42x + (-12x2) = 0 + -42x + 42x + (12x2) + (-12x2)
-36 + 42x + (-12x2) = -42x + 42x + (12x2) + (-12x2)

Combine like terms: -42x + 42x = 0
-36 + 42x + (-12x2) = 0 + (12x2) + (-12x2)
-36 + 42x + (-12x2) = (12x2) + (-12x2)

Combine like terms: (12x2) + (-12x2) = 0
-36 + 42x + (-12x2) = 0

Factor out the Greatest Common Factor (GCF), '6'.
6(-6 + 7x + (-2x2)) = 0

Factor a trinomial.
6((-2 + x)(3 + -2x)) = 0

Ignore the factor 6.

Subproblem 1

Set the factor '(-2 + x)' equal to zero and attempt to solve: Simplifying -2 + x = 0 Solving -2 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + x = 0 + 2 Combine like terms: -2 + 2 = 0 0 + x = 0 + 2 x = 0 + 2 Combine like terms: 0 + 2 = 2 x = 2 Simplifying x = 2

Subproblem 2

Set the factor '(3 + -2x)' equal to zero and attempt to solve: Simplifying 3 + -2x = 0 Solving 3 + -2x = 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 + -2x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -2x = 0 + -3 -2x = 0 + -3 Combine like terms: 0 + -3 = -3 -2x = -3 Divide each side by '-2'. x = 1.5 Simplifying x = 1.5

Solution

x = {2, 1.5}

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