4x^2-24x=28

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Solution for 4x^2-24x=28 equation:


Simplifying
4x2 + -24x = 28

Reorder the terms:
-24x + 4x2 = 28

Solving
-24x + 4x2 = 28

Solving for variable 'x'.

Reorder the terms:
-28 + -24x + 4x2 = 28 + -28

Combine like terms: 28 + -28 = 0
-28 + -24x + 4x2 = 0

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

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

Ignore the factor 4.

Subproblem 1

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

Subproblem 2

Set the factor '(7 + -1x)' equal to zero and attempt to solve: Simplifying 7 + -1x = 0 Solving 7 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -1x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -1x = 0 + -7 -1x = 0 + -7 Combine like terms: 0 + -7 = -7 -1x = -7 Divide each side by '-1'. x = 7 Simplifying x = 7

Solution

x = {-1, 7}

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