Question

(3ab+4)(3ab-4)=(3ab)²-4²

Answer 1

Ответ:

Объяснение:

(3ab+4)(3ab-4)=(3ab)²-4² = 9a²b²-16

Answer 2

The expression (3ab+4)(3ab-4) can be expanded using the difference of squares formula:

(a + b)(a - b) = a^2 - b^2

In your expression, a = 3ab and b = 4, so we can apply the difference of squares formula:

(3ab + 4)(3ab - 4) = (3ab)^2 - (4)^2

Simplify further:

(9a^2b^2) - 16

So, the expanded form of (3ab+4)(3ab-4) is 9a^2b^2 - 16.