(45-2B)(45+2B)=

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Solution for (45-2B)(45+2B)= equation: 


Simplifying
(45 + -2B)(45 + 2B) = 0

Multiply (45 + -2B) * (45 + 2B)
(45(45 + 2B) + -2B * (45 + 2B)) = 0
((45 * 45 + 2B * 45) + -2B * (45 + 2B)) = 0
((2025 + 90B) + -2B * (45 + 2B)) = 0
(2025 + 90B + (45 * -2B + 2B * -2B)) = 0
(2025 + 90B + (-90B + -4B2)) = 0

Combine like terms: 90B + -90B = 0
(2025 + 0 + -4B2) = 0
(2025 + -4B2) = 0

Solving
2025 + -4B2 = 0

Solving for variable 'B'.

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

Add '-2025' to each side of the equation.
2025 + -2025 + -4B2 = 0 + -2025

Combine like terms: 2025 + -2025 = 0
0 + -4B2 = 0 + -2025
-4B2 = 0 + -2025

Combine like terms: 0 + -2025 = -2025
-4B2 = -2025

Divide each side by '-4'.
B2 = 506.25

Simplifying
B2 = 506.25

Take the square root of each side:
B = {-22.5, 22.5}

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