6r^2+30r-92=-8

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Solution for 6r^2+30r-92=-8 equation:


Simplifying
6r2 + 30r + -92 = -8

Reorder the terms:
-92 + 30r + 6r2 = -8

Solving
-92 + 30r + 6r2 = -8

Solving for variable 'r'.

Reorder the terms:
-92 + 8 + 30r + 6r2 = -8 + 8

Combine like terms: -92 + 8 = -84
-84 + 30r + 6r2 = -8 + 8

Combine like terms: -8 + 8 = 0
-84 + 30r + 6r2 = 0

Factor out the Greatest Common Factor (GCF), '6'.
6(-14 + 5r + r2) = 0

Factor a trinomial.
6((-7 + -1r)(2 + -1r)) = 0

Ignore the factor 6.

Subproblem 1

Set the factor '(-7 + -1r)' equal to zero and attempt to solve: Simplifying -7 + -1r = 0 Solving -7 + -1r = 0 Move all terms containing r to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + -1r = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -1r = 0 + 7 -1r = 0 + 7 Combine like terms: 0 + 7 = 7 -1r = 7 Divide each side by '-1'. r = -7 Simplifying r = -7

Subproblem 2

Set the factor '(2 + -1r)' equal to zero and attempt to solve: Simplifying 2 + -1r = 0 Solving 2 + -1r = 0 Move all terms containing r to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1r = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1r = 0 + -2 -1r = 0 + -2 Combine like terms: 0 + -2 = -2 -1r = -2 Divide each side by '-1'. r = 2 Simplifying r = 2

Solution

r = {-7, 2}

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