x(21x+13)+2=0

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Solution for x(21x+13)+2=0 equation:


Simplifying
x(21x + 13) + 2 = 0

Reorder the terms:
x(13 + 21x) + 2 = 0
(13 * x + 21x * x) + 2 = 0
(13x + 21x2) + 2 = 0

Reorder the terms:
2 + 13x + 21x2 = 0

Solving
2 + 13x + 21x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(1 + 3x)(2 + 7x) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(2 + 7x)' equal to zero and attempt to solve: Simplifying 2 + 7x = 0 Solving 2 + 7x = 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 + 7x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + 7x = 0 + -2 7x = 0 + -2 Combine like terms: 0 + -2 = -2 7x = -2 Divide each side by '7'. x = -0.2857142857 Simplifying x = -0.2857142857

Solution

x = {-0.3333333333, -0.2857142857}

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