5b^2=5b+30

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Solution for 5b^2=5b+30 equation:


Simplifying
5b2 = 5b + 30

Reorder the terms:
5b2 = 30 + 5b

Solving
5b2 = 30 + 5b

Solving for variable 'b'.

Reorder the terms:
-30 + -5b + 5b2 = 30 + 5b + -30 + -5b

Reorder the terms:
-30 + -5b + 5b2 = 30 + -30 + 5b + -5b

Combine like terms: 30 + -30 = 0
-30 + -5b + 5b2 = 0 + 5b + -5b
-30 + -5b + 5b2 = 5b + -5b

Combine like terms: 5b + -5b = 0
-30 + -5b + 5b2 = 0

Factor out the Greatest Common Factor (GCF), '5'.
5(-6 + -1b + b2) = 0

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

Ignore the factor 5.

Subproblem 1

Set the factor '(-2 + -1b)' equal to zero and attempt to solve: Simplifying -2 + -1b = 0 Solving -2 + -1b = 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 + -1b = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -1b = 0 + 2 -1b = 0 + 2 Combine like terms: 0 + 2 = 2 -1b = 2 Divide each side by '-1'. b = -2 Simplifying b = -2

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 = {-2, 3}

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