5x^2+4x-1=56

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Solution for 5x^2+4x-1=56 equation:


Simplifying
5x2 + 4x + -1 = 56

Reorder the terms:
-1 + 4x + 5x2 = 56

Solving
-1 + 4x + 5x2 = 56

Solving for variable 'x'.

Reorder the terms:
-1 + -56 + 4x + 5x2 = 56 + -56

Combine like terms: -1 + -56 = -57
-57 + 4x + 5x2 = 56 + -56

Combine like terms: 56 + -56 = 0
-57 + 4x + 5x2 = 0

Factor a trinomial.
(-19 + -5x)(3 + -1x) = 0

Subproblem 1

Set the factor '(-19 + -5x)' equal to zero and attempt to solve: Simplifying -19 + -5x = 0 Solving -19 + -5x = 0 Move all terms containing x to the left, all other terms to the right. Add '19' to each side of the equation. -19 + 19 + -5x = 0 + 19 Combine like terms: -19 + 19 = 0 0 + -5x = 0 + 19 -5x = 0 + 19 Combine like terms: 0 + 19 = 19 -5x = 19 Divide each side by '-5'. x = -3.8 Simplifying x = -3.8

Subproblem 2

Set the factor '(3 + -1x)' equal to zero and attempt to solve: Simplifying 3 + -1x = 0 Solving 3 + -1x = 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 + -1x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1x = 0 + -3 -1x = 0 + -3 Combine like terms: 0 + -3 = -3 -1x = -3 Divide each side by '-1'. x = 3 Simplifying x = 3

Solution

x = {-3.8, 3}

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