x^2+x-6=84

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Solution for x^2+x-6=84 equation:


Simplifying
x2 + x + -6 = 84

Reorder the terms:
-6 + x + x2 = 84

Solving
-6 + x + x2 = 84

Solving for variable 'x'.

Reorder the terms:
-6 + -84 + x + x2 = 84 + -84

Combine like terms: -6 + -84 = -90
-90 + x + x2 = 84 + -84

Combine like terms: 84 + -84 = 0
-90 + x + x2 = 0

Factor a trinomial.
(-10 + -1x)(9 + -1x) = 0

Subproblem 1

Set the factor '(-10 + -1x)' equal to zero and attempt to solve: Simplifying -10 + -1x = 0 Solving -10 + -1x = 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 + -1x = 0 + 10 Combine like terms: -10 + 10 = 0 0 + -1x = 0 + 10 -1x = 0 + 10 Combine like terms: 0 + 10 = 10 -1x = 10 Divide each side by '-1'. x = -10 Simplifying x = -10

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 = {-10, 9}

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