3x^2-2x-1=64

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Solution for 3x^2-2x-1=64 equation:


Simplifying
3x2 + -2x + -1 = 64

Reorder the terms:
-1 + -2x + 3x2 = 64

Solving
-1 + -2x + 3x2 = 64

Solving for variable 'x'.

Reorder the terms:
-1 + -64 + -2x + 3x2 = 64 + -64

Combine like terms: -1 + -64 = -65
-65 + -2x + 3x2 = 64 + -64

Combine like terms: 64 + -64 = 0
-65 + -2x + 3x2 = 0

Factor a trinomial.
(-13 + -3x)(5 + -1x) = 0

Subproblem 1

Set the factor '(-13 + -3x)' equal to zero and attempt to solve: Simplifying -13 + -3x = 0 Solving -13 + -3x = 0 Move all terms containing x to the left, all other terms to the right. Add '13' to each side of the equation. -13 + 13 + -3x = 0 + 13 Combine like terms: -13 + 13 = 0 0 + -3x = 0 + 13 -3x = 0 + 13 Combine like terms: 0 + 13 = 13 -3x = 13 Divide each side by '-3'. x = -4.333333333 Simplifying x = -4.333333333

Subproblem 2

Set the factor '(5 + -1x)' equal to zero and attempt to solve: Simplifying 5 + -1x = 0 Solving 5 + -1x = 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 + -1x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1x = 0 + -5 -1x = 0 + -5 Combine like terms: 0 + -5 = -5 -1x = -5 Divide each side by '-1'. x = 5 Simplifying x = 5

Solution

x = {-4.333333333, 5}

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