x(8x+13)=3x^2-8x+54

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Solution for x(8x+13)=3x^2-8x+54 equation:


Simplifying
x(8x + 13) = 3x2 + -8x + 54

Reorder the terms:
x(13 + 8x) = 3x2 + -8x + 54
(13 * x + 8x * x) = 3x2 + -8x + 54
(13x + 8x2) = 3x2 + -8x + 54

Reorder the terms:
13x + 8x2 = 54 + -8x + 3x2

Solving
13x + 8x2 = 54 + -8x + 3x2

Solving for variable 'x'.

Reorder the terms:
-54 + 13x + 8x + 8x2 + -3x2 = 54 + -8x + 3x2 + -54 + 8x + -3x2

Combine like terms: 13x + 8x = 21x
-54 + 21x + 8x2 + -3x2 = 54 + -8x + 3x2 + -54 + 8x + -3x2

Combine like terms: 8x2 + -3x2 = 5x2
-54 + 21x + 5x2 = 54 + -8x + 3x2 + -54 + 8x + -3x2

Reorder the terms:
-54 + 21x + 5x2 = 54 + -54 + -8x + 8x + 3x2 + -3x2

Combine like terms: 54 + -54 = 0
-54 + 21x + 5x2 = 0 + -8x + 8x + 3x2 + -3x2
-54 + 21x + 5x2 = -8x + 8x + 3x2 + -3x2

Combine like terms: -8x + 8x = 0
-54 + 21x + 5x2 = 0 + 3x2 + -3x2
-54 + 21x + 5x2 = 3x2 + -3x2

Combine like terms: 3x2 + -3x2 = 0
-54 + 21x + 5x2 = 0

Factor a trinomial.
(-6 + -1x)(9 + -5x) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(9 + -5x)' equal to zero and attempt to solve: Simplifying 9 + -5x = 0 Solving 9 + -5x = 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 + -5x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -5x = 0 + -9 -5x = 0 + -9 Combine like terms: 0 + -9 = -9 -5x = -9 Divide each side by '-5'. x = 1.8 Simplifying x = 1.8

Solution

x = {-6, 1.8}

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