3b^2=2b+5

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Solution for 3b^2=2b+5 equation:


Simplifying
3b2 = 2b + 5

Reorder the terms:
3b2 = 5 + 2b

Solving
3b2 = 5 + 2b

Solving for variable 'b'.

Reorder the terms:
-5 + -2b + 3b2 = 5 + 2b + -5 + -2b

Reorder the terms:
-5 + -2b + 3b2 = 5 + -5 + 2b + -2b

Combine like terms: 5 + -5 = 0
-5 + -2b + 3b2 = 0 + 2b + -2b
-5 + -2b + 3b2 = 2b + -2b

Combine like terms: 2b + -2b = 0
-5 + -2b + 3b2 = 0

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

Subproblem 1

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

Subproblem 2

Set the factor '(5 + -3b)' equal to zero and attempt to solve: Simplifying 5 + -3b = 0 Solving 5 + -3b = 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 + -3b = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -3b = 0 + -5 -3b = 0 + -5 Combine like terms: 0 + -5 = -5 -3b = -5 Divide each side by '-3'. b = 1.666666667 Simplifying b = 1.666666667

Solution

b = {-1, 1.666666667}

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