(x+3)(3x-1)=0

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Solution for (x+3)(3x-1)=0 equation:


Simplifying
(x + 3)(3x + -1) = 0

Reorder the terms:
(3 + x)(3x + -1) = 0

Reorder the terms:
(3 + x)(-1 + 3x) = 0

Multiply (3 + x) * (-1 + 3x)
(3(-1 + 3x) + x(-1 + 3x)) = 0
((-1 * 3 + 3x * 3) + x(-1 + 3x)) = 0
((-3 + 9x) + x(-1 + 3x)) = 0
(-3 + 9x + (-1 * x + 3x * x)) = 0
(-3 + 9x + (-1x + 3x2)) = 0

Combine like terms: 9x + -1x = 8x
(-3 + 8x + 3x2) = 0

Solving
-3 + 8x + 3x2 = 0

Solving for variable 'x'.

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

Subproblem 1

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

Subproblem 2

Set the factor '(1 + -3x)' equal to zero and attempt to solve: Simplifying 1 + -3x = 0 Solving 1 + -3x = 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 + -3x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -3x = 0 + -1 -3x = 0 + -1 Combine like terms: 0 + -1 = -1 -3x = -1 Divide each side by '-3'. x = 0.3333333333 Simplifying x = 0.3333333333

Solution

x = {-3, 0.3333333333}

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