Question

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

Answer 1

1) x² - 10xb + 25b²

2) b² - 9

Answer 2

Let's simplify the given expression step by step.

1. (x - 5b)^2: To expand this expression, we'll use the formula (a - b)^2 = a^2 - 2ab + b^2.

(x - 5b)^2 = x^2 - 2(x)(5b) + (5b)^2 = x^2 - 10bx + 25b^2

2. (b + 3)(b - 3): This is a difference of squares, so we can use the formula (a + b)(a - b) = a^2 - b^2.

(b + 3)(b - 3) = b^2 - 3^2 = b^2 - 9

So, the final expression is:

x^2 - 10bx + 25b^2 = b^2 - 9