5b(b+3)-2b(2b+5)=

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Solution for 5b(b+3)-2b(2b+5)= equation:


Simplifying
5b(b + 3) + -2b(2b + 5) = 0

Reorder the terms:
5b(3 + b) + -2b(2b + 5) = 0
(3 * 5b + b * 5b) + -2b(2b + 5) = 0
(15b + 5b2) + -2b(2b + 5) = 0

Reorder the terms:
15b + 5b2 + -2b(5 + 2b) = 0
15b + 5b2 + (5 * -2b + 2b * -2b) = 0
15b + 5b2 + (-10b + -4b2) = 0

Reorder the terms:
15b + -10b + 5b2 + -4b2 = 0

Combine like terms: 15b + -10b = 5b
5b + 5b2 + -4b2 = 0

Combine like terms: 5b2 + -4b2 = 1b2
5b + 1b2 = 0

Solving
5b + 1b2 = 0

Solving for variable 'b'.

Factor out the Greatest Common Factor (GCF), 'b'.
b(5 + b) = 0

Subproblem 1

Set the factor 'b' equal to zero and attempt to solve: Simplifying b = 0 Solving b = 0 Move all terms containing b to the left, all other terms to the right. Simplifying b = 0

Subproblem 2

Set the factor '(5 + b)' equal to zero and attempt to solve: Simplifying 5 + b = 0 Solving 5 + b = 0 Move all terms containing b to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + b = 0 + -5 Combine like terms: 5 + -5 = 0 0 + b = 0 + -5 b = 0 + -5 Combine like terms: 0 + -5 = -5 b = -5 Simplifying b = -5

Solution

b = {0, -5}

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