3b^2-31b=-56

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Solution for 3b^2-31b=-56 equation:


Simplifying
3b2 + -31b = -56

Reorder the terms:
-31b + 3b2 = -56

Solving
-31b + 3b2 = -56

Solving for variable 'b'.

Reorder the terms:
56 + -31b + 3b2 = -56 + 56

Combine like terms: -56 + 56 = 0
56 + -31b + 3b2 = 0

Factor a trinomial.
(7 + -3b)(8 + -1b) = 0

Subproblem 1

Set the factor '(7 + -3b)' equal to zero and attempt to solve: Simplifying 7 + -3b = 0 Solving 7 + -3b = 0 Move all terms containing b to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -3b = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -3b = 0 + -7 -3b = 0 + -7 Combine like terms: 0 + -7 = -7 -3b = -7 Divide each side by '-3'. b = 2.333333333 Simplifying b = 2.333333333

Subproblem 2

Set the factor '(8 + -1b)' equal to zero and attempt to solve: Simplifying 8 + -1b = 0 Solving 8 + -1b = 0 Move all terms containing b to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + -1b = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -1b = 0 + -8 -1b = 0 + -8 Combine like terms: 0 + -8 = -8 -1b = -8 Divide each side by '-1'. b = 8 Simplifying b = 8

Solution

b = {2.333333333, 8}

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