0=12x^2+42x-24

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Solution for 0=12x^2+42x-24 equation:


Simplifying
0 = 12x2 + 42x + -24

Reorder the terms:
0 = -24 + 42x + 12x2

Solving
0 = -24 + 42x + 12x2

Solving for variable 'x'.

Combine like terms: 0 + 24 = 24
24 + -42x + -12x2 = -24 + 42x + 12x2 + 24 + -42x + -12x2

Reorder the terms:
24 + -42x + -12x2 = -24 + 24 + 42x + -42x + 12x2 + -12x2

Combine like terms: -24 + 24 = 0
24 + -42x + -12x2 = 0 + 42x + -42x + 12x2 + -12x2
24 + -42x + -12x2 = 42x + -42x + 12x2 + -12x2

Combine like terms: 42x + -42x = 0
24 + -42x + -12x2 = 0 + 12x2 + -12x2
24 + -42x + -12x2 = 12x2 + -12x2

Combine like terms: 12x2 + -12x2 = 0
24 + -42x + -12x2 = 0

Factor out the Greatest Common Factor (GCF), '6'.
6(4 + -7x + -2x2) = 0

Factor a trinomial.
6((1 + -2x)(4 + x)) = 0

Ignore the factor 6.

Subproblem 1

Set the factor '(1 + -2x)' equal to zero and attempt to solve: Simplifying 1 + -2x = 0 Solving 1 + -2x = 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 + -2x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -2x = 0 + -1 -2x = 0 + -1 Combine like terms: 0 + -1 = -1 -2x = -1 Divide each side by '-2'. x = 0.5 Simplifying x = 0.5

Subproblem 2

Set the factor '(4 + x)' equal to zero and attempt to solve: Simplifying 4 + x = 0 Solving 4 + x = 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 + x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + x = 0 + -4 x = 0 + -4 Combine like terms: 0 + -4 = -4 x = -4 Simplifying x = -4

Solution

x = {0.5, -4}

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