4x^2-5x+15=8x+6

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Solution for 4x^2-5x+15=8x+6 equation:


Simplifying
4x2 + -5x + 15 = 8x + 6

Reorder the terms:
15 + -5x + 4x2 = 8x + 6

Reorder the terms:
15 + -5x + 4x2 = 6 + 8x

Solving
15 + -5x + 4x2 = 6 + 8x

Solving for variable 'x'.

Reorder the terms:
15 + -6 + -5x + -8x + 4x2 = 6 + 8x + -6 + -8x

Combine like terms: 15 + -6 = 9
9 + -5x + -8x + 4x2 = 6 + 8x + -6 + -8x

Combine like terms: -5x + -8x = -13x
9 + -13x + 4x2 = 6 + 8x + -6 + -8x

Reorder the terms:
9 + -13x + 4x2 = 6 + -6 + 8x + -8x

Combine like terms: 6 + -6 = 0
9 + -13x + 4x2 = 0 + 8x + -8x
9 + -13x + 4x2 = 8x + -8x

Combine like terms: 8x + -8x = 0
9 + -13x + 4x2 = 0

Factor a trinomial.
(1 + -1x)(9 + -4x) = 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 '(9 + -4x)' equal to zero and attempt to solve: Simplifying 9 + -4x = 0 Solving 9 + -4x = 0 Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -4x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -4x = 0 + -9 -4x = 0 + -9 Combine like terms: 0 + -9 = -9 -4x = -9 Divide each side by '-4'. x = 2.25 Simplifying x = 2.25

Solution

x = {1, 2.25}

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