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

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Solution for (5b+3)(5b-3)=0 equation:


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

Reorder the terms:
(3 + 5b)(5b + -3) = 0

Reorder the terms:
(3 + 5b)(-3 + 5b) = 0

Multiply (3 + 5b) * (-3 + 5b)
(3(-3 + 5b) + 5b * (-3 + 5b)) = 0
((-3 * 3 + 5b * 3) + 5b * (-3 + 5b)) = 0
((-9 + 15b) + 5b * (-3 + 5b)) = 0
(-9 + 15b + (-3 * 5b + 5b * 5b)) = 0
(-9 + 15b + (-15b + 25b2)) = 0

Combine like terms: 15b + -15b = 0
(-9 + 0 + 25b2) = 0
(-9 + 25b2) = 0

Solving
-9 + 25b2 = 0

Solving for variable 'b'.

Move all terms containing b to the left, all other terms to the right.

Add '9' to each side of the equation.
-9 + 9 + 25b2 = 0 + 9

Combine like terms: -9 + 9 = 0
0 + 25b2 = 0 + 9
25b2 = 0 + 9

Combine like terms: 0 + 9 = 9
25b2 = 9

Divide each side by '25'.
b2 = 0.36

Simplifying
b2 = 0.36

Take the square root of each side:
b = {-0.6, 0.6}

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