x^2=-20x-100

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Solution for x^2=-20x-100 equation:


Simplifying
x2 = -20x + -100

Reorder the terms:
x2 = -100 + -20x

Solving
x2 = -100 + -20x

Solving for variable 'x'.

Reorder the terms:
100 + 20x + x2 = -100 + -20x + 100 + 20x

Reorder the terms:
100 + 20x + x2 = -100 + 100 + -20x + 20x

Combine like terms: -100 + 100 = 0
100 + 20x + x2 = 0 + -20x + 20x
100 + 20x + x2 = -20x + 20x

Combine like terms: -20x + 20x = 0
100 + 20x + x2 = 0

Factor a trinomial.
(10 + x)(10 + x) = 0

Subproblem 1

Set the factor '(10 + x)' equal to zero and attempt to solve: Simplifying 10 + x = 0 Solving 10 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + x = 0 + -10 Combine like terms: 10 + -10 = 0 0 + x = 0 + -10 x = 0 + -10 Combine like terms: 0 + -10 = -10 x = -10 Simplifying x = -10

Subproblem 2

Set the factor '(10 + x)' equal to zero and attempt to solve: Simplifying 10 + x = 0 Solving 10 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + x = 0 + -10 Combine like terms: 10 + -10 = 0 0 + x = 0 + -10 x = 0 + -10 Combine like terms: 0 + -10 = -10 x = -10 Simplifying x = -10

Solution

x = {-10, -10}

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