0=1x^2-9x+20

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Solution for 0=1x^2-9x+20 equation:


Simplifying
0 = 1x2 + -9x + 20

Reorder the terms:
0 = 20 + -9x + 1x2

Solving
0 = 20 + -9x + 1x2

Solving for variable 'x'.

Combine like terms: 0 + -20 = -20
-20 + 9x + -1x2 = 20 + -9x + 1x2 + -20 + 9x + -1x2

Reorder the terms:
-20 + 9x + -1x2 = 20 + -20 + -9x + 9x + 1x2 + -1x2

Combine like terms: 20 + -20 = 0
-20 + 9x + -1x2 = 0 + -9x + 9x + 1x2 + -1x2
-20 + 9x + -1x2 = -9x + 9x + 1x2 + -1x2

Combine like terms: -9x + 9x = 0
-20 + 9x + -1x2 = 0 + 1x2 + -1x2
-20 + 9x + -1x2 = 1x2 + -1x2

Combine like terms: 1x2 + -1x2 = 0
-20 + 9x + -1x2 = 0

Factor a trinomial.
(-5 + x)(4 + -1x) = 0

Subproblem 1

Set the factor '(-5 + x)' equal to zero and attempt to solve: Simplifying -5 + x = 0 Solving -5 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + x = 0 + 5 Combine like terms: -5 + 5 = 0 0 + x = 0 + 5 x = 0 + 5 Combine like terms: 0 + 5 = 5 x = 5 Simplifying x = 5

Subproblem 2

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

Solution

x = {5, 4}

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