12(x^2-1)=7x

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Solution for 12(x^2-1)=7x equation:


Simplifying
12(x2 + -1) = 7x

Reorder the terms:
12(-1 + x2) = 7x
(-1 * 12 + x2 * 12) = 7x
(-12 + 12x2) = 7x

Solving
-12 + 12x2 = 7x

Solving for variable 'x'.

Reorder the terms:
-12 + -7x + 12x2 = 7x + -7x

Combine like terms: 7x + -7x = 0
-12 + -7x + 12x2 = 0

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

Subproblem 1

Set the factor '(-3 + -4x)' equal to zero and attempt to solve: Simplifying -3 + -4x = 0 Solving -3 + -4x = 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 + -4x = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -4x = 0 + 3 -4x = 0 + 3 Combine like terms: 0 + 3 = 3 -4x = 3 Divide each side by '-4'. x = -0.75 Simplifying x = -0.75

Subproblem 2

Set the factor '(4 + -3x)' equal to zero and attempt to solve: Simplifying 4 + -3x = 0 Solving 4 + -3x = 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 + -3x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -3x = 0 + -4 -3x = 0 + -4 Combine like terms: 0 + -4 = -4 -3x = -4 Divide each side by '-3'. x = 1.333333333 Simplifying x = 1.333333333

Solution

x = {-0.75, 1.333333333}

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