b^2-16b=36

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Solution for b^2-16b=36 equation:


Simplifying
b2 + -16b = 36

Reorder the terms:
-16b + b2 = 36

Solving
-16b + b2 = 36

Solving for variable 'b'.

Reorder the terms:
-36 + -16b + b2 = 36 + -36

Combine like terms: 36 + -36 = 0
-36 + -16b + b2 = 0

Factor a trinomial.
(-2 + -1b)(18 + -1b) = 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 '(18 + -1b)' equal to zero and attempt to solve: Simplifying 18 + -1b = 0 Solving 18 + -1b = 0 Move all terms containing b to the left, all other terms to the right. Add '-18' to each side of the equation. 18 + -18 + -1b = 0 + -18 Combine like terms: 18 + -18 = 0 0 + -1b = 0 + -18 -1b = 0 + -18 Combine like terms: 0 + -18 = -18 -1b = -18 Divide each side by '-1'. b = 18 Simplifying b = 18

Solution

b = {-2, 18}

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