Question

Factorise 16c^2 -9a^2 -6ab -b^2​

Answer 1

thanks for asking the question answer is in the picture

Answer 2

Answer:

(4c+3a+b)(4c-3a-b)

Step-by-step explanation:

16c² - 9a² - 6ab - b²

→ (4c)² - [ (3a)²+ 2×3a×b + (b)² ]                  ......by using (a+b)² identities

∴ (4c)² - (3a+b)²

Now by using "a² - b²" identities we get,

⇒ (4c+3a+b)(4c-3a-b)

Cheers!!