9x^2-11x+4=8x^2-20

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Solution for 9x^2-11x+4=8x^2-20 equation: 


Simplifying
9x2 + -11x + 4 = 8x2 + -20

Reorder the terms:
4 + -11x + 9x2 = 8x2 + -20

Reorder the terms:
4 + -11x + 9x2 = -20 + 8x2

Solving
4 + -11x + 9x2 = -20 + 8x2

Solving for variable 'x'.

Reorder the terms:
4 + 20 + -11x + 9x2 + -8x2 = -20 + 8x2 + 20 + -8x2

Combine like terms: 4 + 20 = 24
24 + -11x + 9x2 + -8x2 = -20 + 8x2 + 20 + -8x2

Combine like terms: 9x2 + -8x2 = 1x2
24 + -11x + 1x2 = -20 + 8x2 + 20 + -8x2

Reorder the terms:
24 + -11x + 1x2 = -20 + 20 + 8x2 + -8x2

Combine like terms: -20 + 20 = 0
24 + -11x + 1x2 = 0 + 8x2 + -8x2
24 + -11x + 1x2 = 8x2 + -8x2

Combine like terms: 8x2 + -8x2 = 0
24 + -11x + 1x2 = 0

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


Subproblem 1
Set the factor '(3 + -1x)' equal to zero and attempt to solve:

Simplifying
3 + -1x = 0

Solving
3 + -1x = 0

Move all terms containing x to the left, all other terms to the right.

Add '-3' to each side of the equation.
3 + -3 + -1x = 0 + -3

Combine like terms: 3 + -3 = 0
0 + -1x = 0 + -3
-1x = 0 + -3

Combine like terms: 0 + -3 = -3
-1x = -3

Divide each side by '-1'.
x = 3

Simplifying
x = 3

Subproblem 2
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
Solution
x = {3, 8}

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