55b^2-155b-30=0

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Solution for 55b^2-155b-30=0 equation:


Simplifying
55b2 + -155b + -30 = 0

Reorder the terms:
-30 + -155b + 55b2 = 0

Solving
-30 + -155b + 55b2 = 0

Solving for variable 'b'.

Factor out the Greatest Common Factor (GCF), '5'.
5(-6 + -31b + 11b2) = 0

Factor a trinomial.
5((-2 + -11b)(3 + -1b)) = 0

Ignore the factor 5.

Subproblem 1

Set the factor '(-2 + -11b)' equal to zero and attempt to solve: Simplifying -2 + -11b = 0 Solving -2 + -11b = 0 Move all terms containing b to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + -11b = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -11b = 0 + 2 -11b = 0 + 2 Combine like terms: 0 + 2 = 2 -11b = 2 Divide each side by '-11'. b = -0.1818181818 Simplifying b = -0.1818181818

Subproblem 2

Set the factor '(3 + -1b)' equal to zero and attempt to solve: Simplifying 3 + -1b = 0 Solving 3 + -1b = 0 Move all terms containing b to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1b = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1b = 0 + -3 -1b = 0 + -3 Combine like terms: 0 + -3 = -3 -1b = -3 Divide each side by '-1'. b = 3 Simplifying b = 3

Solution

b = {-0.1818181818, 3}

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