4x^2-11=-20x

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Solution for 4x^2-11=-20x equation:


Simplifying
4x2 + -11 = -20x

Reorder the terms:
-11 + 4x2 = -20x

Solving
-11 + 4x2 = -20x

Solving for variable 'x'.

Reorder the terms:
-11 + 20x + 4x2 = -20x + 20x

Combine like terms: -20x + 20x = 0
-11 + 20x + 4x2 = 0

Factor a trinomial.
(-11 + -2x)(1 + -2x) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(1 + -2x)' equal to zero and attempt to solve: Simplifying 1 + -2x = 0 Solving 1 + -2x = 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 + -2x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -2x = 0 + -1 -2x = 0 + -1 Combine like terms: 0 + -1 = -1 -2x = -1 Divide each side by '-2'. x = 0.5 Simplifying x = 0.5

Solution

x = {-5.5, 0.5}

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