(5b+8)(5b+2)=

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Solution for (5b+8)(5b+2)= equation:


Simplifying
(5b + 8)(5b + 2) = 0

Reorder the terms:
(8 + 5b)(5b + 2) = 0

Reorder the terms:
(8 + 5b)(2 + 5b) = 0

Multiply (8 + 5b) * (2 + 5b)
(8(2 + 5b) + 5b * (2 + 5b)) = 0
((2 * 8 + 5b * 8) + 5b * (2 + 5b)) = 0
((16 + 40b) + 5b * (2 + 5b)) = 0
(16 + 40b + (2 * 5b + 5b * 5b)) = 0
(16 + 40b + (10b + 25b2)) = 0

Combine like terms: 40b + 10b = 50b
(16 + 50b + 25b2) = 0

Solving
16 + 50b + 25b2 = 0

Solving for variable 'b'.

Factor a trinomial.
(8 + 5b)(2 + 5b) = 0

Subproblem 1

Set the factor '(8 + 5b)' equal to zero and attempt to solve: Simplifying 8 + 5b = 0 Solving 8 + 5b = 0 Move all terms containing b to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + 5b = 0 + -8 Combine like terms: 8 + -8 = 0 0 + 5b = 0 + -8 5b = 0 + -8 Combine like terms: 0 + -8 = -8 5b = -8 Divide each side by '5'. b = -1.6 Simplifying b = -1.6

Subproblem 2

Set the factor '(2 + 5b)' equal to zero and attempt to solve: Simplifying 2 + 5b = 0 Solving 2 + 5b = 0 Move all terms containing b to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + 5b = 0 + -2 Combine like terms: 2 + -2 = 0 0 + 5b = 0 + -2 5b = 0 + -2 Combine like terms: 0 + -2 = -2 5b = -2 Divide each side by '5'. b = -0.4 Simplifying b = -0.4

Solution

b = {-1.6, -0.4}

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