21x^2-46x+13=0

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Solution for 21x^2-46x+13=0 equation:


Simplifying
21x2 + -46x + 13 = 0

Reorder the terms:
13 + -46x + 21x2 = 0

Solving
13 + -46x + 21x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(1 + -3x)(13 + -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 '(13 + -7x)' equal to zero and attempt to solve: Simplifying 13 + -7x = 0 Solving 13 + -7x = 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 + -7x = 0 + -13 Combine like terms: 13 + -13 = 0 0 + -7x = 0 + -13 -7x = 0 + -13 Combine like terms: 0 + -13 = -13 -7x = -13 Divide each side by '-7'. x = 1.857142857 Simplifying x = 1.857142857

Solution

x = {0.3333333333, 1.857142857}

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