9x^2=42x-24

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Solution for 9x^2=42x-24 equation:


Simplifying
9x2 = 42x + -24

Reorder the terms:
9x2 = -24 + 42x

Solving
9x2 = -24 + 42x

Solving for variable 'x'.

Reorder the terms:
24 + -42x + 9x2 = -24 + 42x + 24 + -42x

Reorder the terms:
24 + -42x + 9x2 = -24 + 24 + 42x + -42x

Combine like terms: -24 + 24 = 0
24 + -42x + 9x2 = 0 + 42x + -42x
24 + -42x + 9x2 = 42x + -42x

Combine like terms: 42x + -42x = 0
24 + -42x + 9x2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(8 + -14x + 3x2) = 0

Factor a trinomial.
3((2 + -3x)(4 + -1x)) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(2 + -3x)' equal to zero and attempt to solve: Simplifying 2 + -3x = 0 Solving 2 + -3x = 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 + -3x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -3x = 0 + -2 -3x = 0 + -2 Combine like terms: 0 + -2 = -2 -3x = -2 Divide each side by '-3'. x = 0.6666666667 Simplifying x = 0.6666666667

Subproblem 2

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

Solution

x = {0.6666666667, 4}

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