6r^2-180r-2400=0

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Solution for 6r^2-180r-2400=0 equation:


Simplifying
6r2 + -180r + -2400 = 0

Reorder the terms:
-2400 + -180r + 6r2 = 0

Solving
-2400 + -180r + 6r2 = 0

Solving for variable 'r'.

Factor out the Greatest Common Factor (GCF), '6'.
6(-400 + -30r + r2) = 0

Factor a trinomial.
6((-10 + -1r)(40 + -1r)) = 0

Ignore the factor 6.

Subproblem 1

Set the factor '(-10 + -1r)' equal to zero and attempt to solve: Simplifying -10 + -1r = 0 Solving -10 + -1r = 0 Move all terms containing r to the left, all other terms to the right. Add '10' to each side of the equation. -10 + 10 + -1r = 0 + 10 Combine like terms: -10 + 10 = 0 0 + -1r = 0 + 10 -1r = 0 + 10 Combine like terms: 0 + 10 = 10 -1r = 10 Divide each side by '-1'. r = -10 Simplifying r = -10

Subproblem 2

Set the factor '(40 + -1r)' equal to zero and attempt to solve: Simplifying 40 + -1r = 0 Solving 40 + -1r = 0 Move all terms containing r to the left, all other terms to the right. Add '-40' to each side of the equation. 40 + -40 + -1r = 0 + -40 Combine like terms: 40 + -40 = 0 0 + -1r = 0 + -40 -1r = 0 + -40 Combine like terms: 0 + -40 = -40 -1r = -40 Divide each side by '-1'. r = 40 Simplifying r = 40

Solution

r = {-10, 40}

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