3x^2+5=8x

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Solution for 3x^2+5=8x equation:


Simplifying
3x2 + 5 = 8x

Reorder the terms:
5 + 3x2 = 8x

Solving
5 + 3x2 = 8x

Solving for variable 'x'.

Reorder the terms:
5 + -8x + 3x2 = 8x + -8x

Combine like terms: 8x + -8x = 0
5 + -8x + 3x2 = 0

Factor a trinomial.
(1 + -1x)(5 + -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 '(5 + -3x)' equal to zero and attempt to solve: Simplifying 5 + -3x = 0 Solving 5 + -3x = 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 + -3x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -3x = 0 + -5 -3x = 0 + -5 Combine like terms: 0 + -5 = -5 -3x = -5 Divide each side by '-3'. x = 1.666666667 Simplifying x = 1.666666667

Solution

x = {1, 1.666666667}

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