3x^2-8x+3=8x+15

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Solution for 3x^2-8x+3=8x+15 equation:


Simplifying
3x2 + -8x + 3 = 8x + 15

Reorder the terms:
3 + -8x + 3x2 = 8x + 15

Reorder the terms:
3 + -8x + 3x2 = 15 + 8x

Solving
3 + -8x + 3x2 = 15 + 8x

Solving for variable 'x'.

Reorder the terms:
3 + -15 + -8x + -8x + 3x2 = 15 + 8x + -15 + -8x

Combine like terms: 3 + -15 = -12
-12 + -8x + -8x + 3x2 = 15 + 8x + -15 + -8x

Combine like terms: -8x + -8x = -16x
-12 + -16x + 3x2 = 15 + 8x + -15 + -8x

Reorder the terms:
-12 + -16x + 3x2 = 15 + -15 + 8x + -8x

Combine like terms: 15 + -15 = 0
-12 + -16x + 3x2 = 0 + 8x + -8x
-12 + -16x + 3x2 = 8x + -8x

Combine like terms: 8x + -8x = 0
-12 + -16x + 3x2 = 0

Factor a trinomial.
(-2 + -3x)(6 + -1x) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(6 + -1x)' equal to zero and attempt to solve: Simplifying 6 + -1x = 0 Solving 6 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + -1x = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -1x = 0 + -6 -1x = 0 + -6 Combine like terms: 0 + -6 = -6 -1x = -6 Divide each side by '-1'. x = 6 Simplifying x = 6

Solution

x = {-0.6666666667, 6}

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