(3-x)(-x)+2=0

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Solution for (3-x)(-x)+2=0 equation:


Simplifying
(3 + -1x)(-1x) + 2 = 0

Remove parenthesis around (-1x)
(3 + -1x) * -1x + 2 = 0

Reorder the terms for easier multiplication:
-1x(3 + -1x) + 2 = 0
(3 * -1x + -1x * -1x) + 2 = 0
(-3x + 1x2) + 2 = 0

Reorder the terms:
2 + -3x + 1x2 = 0

Solving
2 + -3x + 1x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(1 + -1x)(2 + -1x) = 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 '(2 + -1x)' equal to zero and attempt to solve: Simplifying 2 + -1x = 0 Solving 2 + -1x = 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 + -1x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1x = 0 + -2 -1x = 0 + -2 Combine like terms: 0 + -2 = -2 -1x = -2 Divide each side by '-1'. x = 2 Simplifying x = 2

Solution

x = {1, 2}

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