7x^2-14x=168

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Solution for 7x^2-14x=168 equation:


Simplifying
7x2 + -14x = 168

Reorder the terms:
-14x + 7x2 = 168

Solving
-14x + 7x2 = 168

Solving for variable 'x'.

Reorder the terms:
-168 + -14x + 7x2 = 168 + -168

Combine like terms: 168 + -168 = 0
-168 + -14x + 7x2 = 0

Factor out the Greatest Common Factor (GCF), '7'.
7(-24 + -2x + x2) = 0

Factor a trinomial.
7((-4 + -1x)(6 + -1x)) = 0

Ignore the factor 7.

Subproblem 1

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

Subproblem 2

Set the factor '(6 + -1x)' equal to zero and attempt to solve: Simplifying 6 + -1x = 0 Solving 6 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + -1x = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -1x = 0 + -6 -1x = 0 + -6 Combine like terms: 0 + -6 = -6 -1x = -6 Divide each side by '-1'. x = 6 Simplifying x = 6

Solution

x = {-4, 6}

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