55b^2-140b-75=

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Solution for 55b^2-140b-75= equation:


Simplifying
55b2 + -140b + -75 = 0

Reorder the terms:
-75 + -140b + 55b2 = 0

Solving
-75 + -140b + 55b2 = 0

Solving for variable 'b'.

Factor out the Greatest Common Factor (GCF), '5'.
5(-15 + -28b + 11b2) = 0

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

Ignore the factor 5.

Subproblem 1

Set the factor '(-5 + -11b)' equal to zero and attempt to solve: Simplifying -5 + -11b = 0 Solving -5 + -11b = 0 Move all terms containing b to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + -11b = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -11b = 0 + 5 -11b = 0 + 5 Combine like terms: 0 + 5 = 5 -11b = 5 Divide each side by '-11'. b = -0.4545454545 Simplifying b = -0.4545454545

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 = {-0.4545454545, 3}

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