55r^2+17r-2=

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Solution for 55r^2+17r-2= equation:


Simplifying
55r2 + 17r + -2 = 0

Reorder the terms:
-2 + 17r + 55r2 = 0

Solving
-2 + 17r + 55r2 = 0

Solving for variable 'r'.

Factor a trinomial.
(-2 + -5r)(1 + -11r) = 0

Subproblem 1

Set the factor '(-2 + -5r)' equal to zero and attempt to solve: Simplifying -2 + -5r = 0 Solving -2 + -5r = 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 + -5r = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -5r = 0 + 2 -5r = 0 + 2 Combine like terms: 0 + 2 = 2 -5r = 2 Divide each side by '-5'. r = -0.4 Simplifying r = -0.4

Subproblem 2

Set the factor '(1 + -11r)' equal to zero and attempt to solve: Simplifying 1 + -11r = 0 Solving 1 + -11r = 0 Move all terms containing r to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -11r = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -11r = 0 + -1 -11r = 0 + -1 Combine like terms: 0 + -1 = -1 -11r = -1 Divide each side by '-11'. r = 0.09090909091 Simplifying r = 0.09090909091

Solution

r = {-0.4, 0.09090909091}

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