4x^2-4x=99

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Solution for 4x^2-4x=99 equation:


Simplifying
4x2 + -4x = 99

Reorder the terms:
-4x + 4x2 = 99

Solving
-4x + 4x2 = 99

Solving for variable 'x'.

Reorder the terms:
-99 + -4x + 4x2 = 99 + -99

Combine like terms: 99 + -99 = 0
-99 + -4x + 4x2 = 0

Factor a trinomial.
(-9 + -2x)(11 + -2x) = 0

Subproblem 1

Set the factor '(-9 + -2x)' equal to zero and attempt to solve: Simplifying -9 + -2x = 0 Solving -9 + -2x = 0 Move all terms containing x to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + -2x = 0 + 9 Combine like terms: -9 + 9 = 0 0 + -2x = 0 + 9 -2x = 0 + 9 Combine like terms: 0 + 9 = 9 -2x = 9 Divide each side by '-2'. x = -4.5 Simplifying x = -4.5

Subproblem 2

Set the factor '(11 + -2x)' equal to zero and attempt to solve: Simplifying 11 + -2x = 0 Solving 11 + -2x = 0 Move all terms containing x to the left, all other terms to the right. Add '-11' to each side of the equation. 11 + -11 + -2x = 0 + -11 Combine like terms: 11 + -11 = 0 0 + -2x = 0 + -11 -2x = 0 + -11 Combine like terms: 0 + -11 = -11 -2x = -11 Divide each side by '-2'. x = 5.5 Simplifying x = 5.5

Solution

x = {-4.5, 5.5}

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