30b^3+145b^2-210b=

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Solution for 30b^3+145b^2-210b= equation:


Simplifying
30b3 + 145b2 + -210b = 0

Reorder the terms:
-210b + 145b2 + 30b3 = 0

Solving
-210b + 145b2 + 30b3 = 0

Solving for variable 'b'.

Factor out the Greatest Common Factor (GCF), '5b'.
5b(-42 + 29b + 6b2) = 0

Factor a trinomial.
5b((-6 + -1b)(7 + -6b)) = 0

Ignore the factor 5.

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 '(-6 + -1b)' equal to zero and attempt to solve: Simplifying -6 + -1b = 0 Solving -6 + -1b = 0 Move all terms containing b to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + -1b = 0 + 6 Combine like terms: -6 + 6 = 0 0 + -1b = 0 + 6 -1b = 0 + 6 Combine like terms: 0 + 6 = 6 -1b = 6 Divide each side by '-1'. b = -6 Simplifying b = -6

Subproblem 3

Set the factor '(7 + -6b)' equal to zero and attempt to solve: Simplifying 7 + -6b = 0 Solving 7 + -6b = 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 + -6b = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -6b = 0 + -7 -6b = 0 + -7 Combine like terms: 0 + -7 = -7 -6b = -7 Divide each side by '-6'. b = 1.166666667 Simplifying b = 1.166666667

Solution

b = {0, -6, 1.166666667}

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