3x^2=-19x-20

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Solution for 3x^2=-19x-20 equation:


Simplifying
3x2 = -19x + -20

Reorder the terms:
3x2 = -20 + -19x

Solving
3x2 = -20 + -19x

Solving for variable 'x'.

Reorder the terms:
20 + 19x + 3x2 = -20 + -19x + 20 + 19x

Reorder the terms:
20 + 19x + 3x2 = -20 + 20 + -19x + 19x

Combine like terms: -20 + 20 = 0
20 + 19x + 3x2 = 0 + -19x + 19x
20 + 19x + 3x2 = -19x + 19x

Combine like terms: -19x + 19x = 0
20 + 19x + 3x2 = 0

Factor a trinomial.
(5 + x)(4 + 3x) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(4 + 3x)' equal to zero and attempt to solve: Simplifying 4 + 3x = 0 Solving 4 + 3x = 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 + 3x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + 3x = 0 + -4 3x = 0 + -4 Combine like terms: 0 + -4 = -4 3x = -4 Divide each side by '3'. x = -1.333333333 Simplifying x = -1.333333333

Solution

x = {-5, -1.333333333}

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