2b^2-b=10

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Solution for 2b^2-b=10 equation:


Simplifying
2b2 + -1b = 10

Reorder the terms:
-1b + 2b2 = 10

Solving
-1b + 2b2 = 10

Solving for variable 'b'.

Reorder the terms:
-10 + -1b + 2b2 = 10 + -10

Combine like terms: 10 + -10 = 0
-10 + -1b + 2b2 = 0

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

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 '(5 + -2b)' equal to zero and attempt to solve: Simplifying 5 + -2b = 0 Solving 5 + -2b = 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 + -2b = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -2b = 0 + -5 -2b = 0 + -5 Combine like terms: 0 + -5 = -5 -2b = -5 Divide each side by '-2'. b = 2.5 Simplifying b = 2.5

Solution

b = {-2, 2.5}

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