(2-x)(-1-x)-10=0

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Solution for (2-x)(-1-x)-10=0 equation:


Simplifying
(2 + -1x)(-1 + -1x) + -10 = 0

Multiply (2 + -1x) * (-1 + -1x)
(2(-1 + -1x) + -1x * (-1 + -1x)) + -10 = 0
((-1 * 2 + -1x * 2) + -1x * (-1 + -1x)) + -10 = 0
((-2 + -2x) + -1x * (-1 + -1x)) + -10 = 0
(-2 + -2x + (-1 * -1x + -1x * -1x)) + -10 = 0
(-2 + -2x + (1x + 1x2)) + -10 = 0

Combine like terms: -2x + 1x = -1x
(-2 + -1x + 1x2) + -10 = 0

Reorder the terms:
-2 + -10 + -1x + 1x2 = 0

Combine like terms: -2 + -10 = -12
-12 + -1x + 1x2 = 0

Solving
-12 + -1x + 1x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-3 + -1x)(4 + -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 '(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 = {-3, 4}

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