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Simplifying b(43 + 10b) = 9 (43 * b + 10b * b) = 9 (43b + 10b2) = 9 Solving 43b + 10b2 = 9 Solving for variable 'b'. Reorder the terms: -9 + 43b + 10b2 = 9 + -9 Combine like terms: 9 + -9 = 0 -9 + 43b + 10b2 = 0 Factor a trinomial. (-9 + -2b)(1 + -5b) = 0Subproblem 1
Set the factor '(-9 + -2b)' equal to zero and attempt to solve: Simplifying -9 + -2b = 0 Solving -9 + -2b = 0 Move all terms containing b to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + -2b = 0 + 9 Combine like terms: -9 + 9 = 0 0 + -2b = 0 + 9 -2b = 0 + 9 Combine like terms: 0 + 9 = 9 -2b = 9 Divide each side by '-2'. b = -4.5 Simplifying b = -4.5Subproblem 2
Set the factor '(1 + -5b)' equal to zero and attempt to solve: Simplifying 1 + -5b = 0 Solving 1 + -5b = 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 + -5b = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -5b = 0 + -1 -5b = 0 + -1 Combine like terms: 0 + -1 = -1 -5b = -1 Divide each side by '-5'. b = 0.2 Simplifying b = 0.2Solution
b = {-4.5, 0.2}
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