Question

(4d-13b)(4d+13b). :. ​

Answer 1

по формуле сокращенного умножения:

(4d-13b)(4d+13b)=(4d)²-(13b)²=16d²-169b²

Answer 2

To simplify the expression (4d - 13b)(4d + 13b), you can use the distributive property, which states that (a - b)(a + b) = a^2 - b^2. In this case:

(4d - 13b)(4d + 13b) = (4d)^2 - (13b)^2

Now, square each term:

(4d)^2 = 16d^2 (13b)^2 = 169b^2

So, the simplified expression is:

16d^2 - 169b^2

That's the final answer.