(x-9)(x-1)=0

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Solution for (x-9)(x-1)=0 equation:


Simplifying
(x + -9)(x + -1) = 0

Reorder the terms:
(-9 + x)(x + -1) = 0

Reorder the terms:
(-9 + x)(-1 + x) = 0

Multiply (-9 + x) * (-1 + x)
(-9(-1 + x) + x(-1 + x)) = 0
((-1 * -9 + x * -9) + x(-1 + x)) = 0
((9 + -9x) + x(-1 + x)) = 0
(9 + -9x + (-1 * x + x * x)) = 0
(9 + -9x + (-1x + x2)) = 0

Combine like terms: -9x + -1x = -10x
(9 + -10x + x2) = 0

Solving
9 + -10x + x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(1 + -1x)(9 + -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 '(9 + -1x)' equal to zero and attempt to solve: Simplifying 9 + -1x = 0 Solving 9 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -1x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -1x = 0 + -9 -1x = 0 + -9 Combine like terms: 0 + -9 = -9 -1x = -9 Divide each side by '-1'. x = 9 Simplifying x = 9

Solution

x = {1, 9}

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