2b^2+4=9b

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Solution for 2b^2+4=9b equation:


Simplifying
2b2 + 4 = 9b

Reorder the terms:
4 + 2b2 = 9b

Solving
4 + 2b2 = 9b

Solving for variable 'b'.

Reorder the terms:
4 + -9b + 2b2 = 9b + -9b

Combine like terms: 9b + -9b = 0
4 + -9b + 2b2 = 0

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

Subproblem 1

Set the factor '(1 + -2b)' equal to zero and attempt to solve: Simplifying 1 + -2b = 0 Solving 1 + -2b = 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 + -2b = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -2b = 0 + -1 -2b = 0 + -1 Combine like terms: 0 + -1 = -1 -2b = -1 Divide each side by '-2'. b = 0.5 Simplifying b = 0.5

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

Solution

b = {0.5, 4}

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