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Simplifying b2 + -1b + -40 = 2 Reorder the terms: -40 + -1b + b2 = 2 Solving -40 + -1b + b2 = 2 Solving for variable 'b'. Reorder the terms: -40 + -2 + -1b + b2 = 2 + -2 Combine like terms: -40 + -2 = -42 -42 + -1b + b2 = 2 + -2 Combine like terms: 2 + -2 = 0 -42 + -1b + b2 = 0 Factor a trinomial. (-6 + -1b)(7 + -1b) = 0Subproblem 1
Set the factor '(-6 + -1b)' equal to zero and attempt to solve: Simplifying -6 + -1b = 0 Solving -6 + -1b = 0 Move all terms containing b to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + -1b = 0 + 6 Combine like terms: -6 + 6 = 0 0 + -1b = 0 + 6 -1b = 0 + 6 Combine like terms: 0 + 6 = 6 -1b = 6 Divide each side by '-1'. b = -6 Simplifying b = -6Subproblem 2
Set the factor '(7 + -1b)' equal to zero and attempt to solve: Simplifying 7 + -1b = 0 Solving 7 + -1b = 0 Move all terms containing b to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -1b = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -1b = 0 + -7 -1b = 0 + -7 Combine like terms: 0 + -7 = -7 -1b = -7 Divide each side by '-1'. b = 7 Simplifying b = 7Solution
b = {-6, 7}
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