x(5x+9)=2x^2-13x+16

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Solution for x(5x+9)=2x^2-13x+16 equation:


Simplifying
x(5x + 9) = 2x2 + -13x + 16

Reorder the terms:
x(9 + 5x) = 2x2 + -13x + 16
(9 * x + 5x * x) = 2x2 + -13x + 16
(9x + 5x2) = 2x2 + -13x + 16

Reorder the terms:
9x + 5x2 = 16 + -13x + 2x2

Solving
9x + 5x2 = 16 + -13x + 2x2

Solving for variable 'x'.

Reorder the terms:
-16 + 9x + 13x + 5x2 + -2x2 = 16 + -13x + 2x2 + -16 + 13x + -2x2

Combine like terms: 9x + 13x = 22x
-16 + 22x + 5x2 + -2x2 = 16 + -13x + 2x2 + -16 + 13x + -2x2

Combine like terms: 5x2 + -2x2 = 3x2
-16 + 22x + 3x2 = 16 + -13x + 2x2 + -16 + 13x + -2x2

Reorder the terms:
-16 + 22x + 3x2 = 16 + -16 + -13x + 13x + 2x2 + -2x2

Combine like terms: 16 + -16 = 0
-16 + 22x + 3x2 = 0 + -13x + 13x + 2x2 + -2x2
-16 + 22x + 3x2 = -13x + 13x + 2x2 + -2x2

Combine like terms: -13x + 13x = 0
-16 + 22x + 3x2 = 0 + 2x2 + -2x2
-16 + 22x + 3x2 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
-16 + 22x + 3x2 = 0

Factor a trinomial.
(-8 + -1x)(2 + -3x) = 0

Subproblem 1

Set the factor '(-8 + -1x)' equal to zero and attempt to solve: Simplifying -8 + -1x = 0 Solving -8 + -1x = 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 + -1x = 0 + 8 Combine like terms: -8 + 8 = 0 0 + -1x = 0 + 8 -1x = 0 + 8 Combine like terms: 0 + 8 = 8 -1x = 8 Divide each side by '-1'. x = -8 Simplifying x = -8

Subproblem 2

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

Solution

x = {-8, 0.6666666667}

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