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Simplifying 2b2 + 6b = 56 Reorder the terms: 6b + 2b2 = 56 Solving 6b + 2b2 = 56 Solving for variable 'b'. Reorder the terms: -56 + 6b + 2b2 = 56 + -56 Combine like terms: 56 + -56 = 0 -56 + 6b + 2b2 = 0 Factor out the Greatest Common Factor (GCF), '2'. 2(-28 + 3b + b2) = 0 Factor a trinomial. 2((-7 + -1b)(4 + -1b)) = 0 Ignore the factor 2.Subproblem 1
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 = -7Subproblem 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 = 4Solution
b = {-7, 4}
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