X(X-10)=11

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Solution for X(X-10)=11 equation:


Simplifying
X(X + -10) = 11

Reorder the terms:
X(-10 + X) = 11
(-10 * X + X * X) = 11
(-10X + X2) = 11

Solving
-10X + X2 = 11

Solving for variable 'X'.

Reorder the terms:
-11 + -10X + X2 = 11 + -11

Combine like terms: 11 + -11 = 0
-11 + -10X + X2 = 0

Factor a trinomial.
(-1 + -1X)(11 + -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 '(11 + -1X)' equal to zero and attempt to solve: Simplifying 11 + -1X = 0 Solving 11 + -1X = 0 Move all terms containing X to the left, all other terms to the right. Add '-11' to each side of the equation. 11 + -11 + -1X = 0 + -11 Combine like terms: 11 + -11 = 0 0 + -1X = 0 + -11 -1X = 0 + -11 Combine like terms: 0 + -11 = -11 -1X = -11 Divide each side by '-1'. X = 11 Simplifying X = 11

Solution

X = {-1, 11}

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