=3x^2-x-2

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


Simplifying
0 = 3x2 + -1x + -2

Reorder the terms:
0 = -2 + -1x + 3x2

Solving
0 = -2 + -1x + 3x2

Solving for variable 'x'.

Combine like terms: 0 + 2 = 2
2 + x + -3x2 = -2 + -1x + 3x2 + 2 + x + -3x2

Reorder the terms:
2 + x + -3x2 = -2 + 2 + -1x + x + 3x2 + -3x2

Combine like terms: -2 + 2 = 0
2 + x + -3x2 = 0 + -1x + x + 3x2 + -3x2
2 + x + -3x2 = -1x + x + 3x2 + -3x2

Combine like terms: -1x + x = 0
2 + x + -3x2 = 0 + 3x2 + -3x2
2 + x + -3x2 = 3x2 + -3x2

Combine like terms: 3x2 + -3x2 = 0
2 + x + -3x2 = 0

Factor a trinomial.
(1 + -1x)(2 + 3x) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(2 + 3x)' equal to zero and attempt to solve: Simplifying 2 + 3x = 0 Solving 2 + 3x = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + 3x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + 3x = 0 + -2 3x = 0 + -2 Combine like terms: 0 + -2 = -2 3x = -2 Divide each side by '3'. x = -0.6666666667 Simplifying x = -0.6666666667

Solution

x = {1, -0.6666666667}

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