0=x^2-6x-27

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Solution for 0=x^2-6x-27 equation:


Simplifying
0 = x2 + -6x + -27

Reorder the terms:
0 = -27 + -6x + x2

Solving
0 = -27 + -6x + x2

Solving for variable 'x'.

Combine like terms: 0 + 27 = 27
27 + 6x + -1x2 = -27 + -6x + x2 + 27 + 6x + -1x2

Reorder the terms:
27 + 6x + -1x2 = -27 + 27 + -6x + 6x + x2 + -1x2

Combine like terms: -27 + 27 = 0
27 + 6x + -1x2 = 0 + -6x + 6x + x2 + -1x2
27 + 6x + -1x2 = -6x + 6x + x2 + -1x2

Combine like terms: -6x + 6x = 0
27 + 6x + -1x2 = 0 + x2 + -1x2
27 + 6x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
27 + 6x + -1x2 = 0

Factor a trinomial.
(9 + -1x)(3 + x) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(3 + x)' equal to zero and attempt to solve: Simplifying 3 + x = 0 Solving 3 + x = 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 + x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + x = 0 + -3 x = 0 + -3 Combine like terms: 0 + -3 = -3 x = -3 Simplifying x = -3

Solution

x = {9, -3}

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