3x^2=8-5x

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


Simplifying
3x2 = 8 + -5x

Solving
3x2 = 8 + -5x

Solving for variable 'x'.

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

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

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

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

Factor a trinomial.
(-8 + -3x)(1 + -1x) = 0

Subproblem 1

Set the factor '(-8 + -3x)' equal to zero and attempt to solve: Simplifying -8 + -3x = 0 Solving -8 + -3x = 0 Move all terms containing x to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + -3x = 0 + 8 Combine like terms: -8 + 8 = 0 0 + -3x = 0 + 8 -3x = 0 + 8 Combine like terms: 0 + 8 = 8 -3x = 8 Divide each side by '-3'. x = -2.666666667 Simplifying x = -2.666666667

Subproblem 2

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

Solution

x = {-2.666666667, 1}

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