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Simplifying 20b3 + -28b2 = 0 Reorder the terms: -28b2 + 20b3 = 0 Solving -28b2 + 20b3 = 0 Solving for variable 'b'. Factor out the Greatest Common Factor (GCF), '4b2'. 4b2(-7 + 5b) = 0 Ignore the factor 4.Subproblem 1
Set the factor 'b2' equal to zero and attempt to solve: Simplifying b2 = 0 Solving b2 = 0 Move all terms containing b to the left, all other terms to the right. Simplifying b2 = 0 Take the square root of each side: b = {0}Subproblem 2
Set the factor '(-7 + 5b)' equal to zero and attempt to solve: Simplifying -7 + 5b = 0 Solving -7 + 5b = 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 + 5b = 0 + 7 Combine like terms: -7 + 7 = 0 0 + 5b = 0 + 7 5b = 0 + 7 Combine like terms: 0 + 7 = 7 5b = 7 Divide each side by '5'. b = 1.4 Simplifying b = 1.4Solution
b = {0, 1.4}
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