8b^3+18b^2-56b=

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Solution for 8b^3+18b^2-56b= equation:


Simplifying
8b3 + 18b2 + -56b = 0

Reorder the terms:
-56b + 18b2 + 8b3 = 0

Solving
-56b + 18b2 + 8b3 = 0

Solving for variable 'b'.

Factor out the Greatest Common Factor (GCF), '2b'.
2b(-28 + 9b + 4b2) = 0

Factor a trinomial.
2b((-4 + -1b)(7 + -4b)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor 'b' equal to zero and attempt to solve: Simplifying b = 0 Solving b = 0 Move all terms containing b to the left, all other terms to the right. Simplifying b = 0

Subproblem 2

Set the factor '(-4 + -1b)' equal to zero and attempt to solve: Simplifying -4 + -1b = 0 Solving -4 + -1b = 0 Move all terms containing b to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + -1b = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -1b = 0 + 4 -1b = 0 + 4 Combine like terms: 0 + 4 = 4 -1b = 4 Divide each side by '-1'. b = -4 Simplifying b = -4

Subproblem 3

Set the factor '(7 + -4b)' equal to zero and attempt to solve: Simplifying 7 + -4b = 0 Solving 7 + -4b = 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 + -4b = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -4b = 0 + -7 -4b = 0 + -7 Combine like terms: 0 + -7 = -7 -4b = -7 Divide each side by '-4'. b = 1.75 Simplifying b = 1.75

Solution

b = {0, -4, 1.75}

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