Question

please tell this anwer Expand 9a^2-49b^2.​

Answer 1

Answer:

$(9 {a}^{2}- 49 {b}^{2}) = ( {(3a)}^{2} - {(7b)}^{2} ) \\ = (3a - 7b)(3a + 7b)$

(3a-7b)(3a+7b) is the right answer.

Answer 2

Answer:

here's ur answer

Step-by-step explanation:

9a²-49b²

a²-b²=(a-b) (a+b)

(3a-7b)(3a+7b)

hope this answer helps you