Question

factorize (5a-3b)2-16b2

Answer 1

Step-by-step explanation:

(5a-3b)2-16b2

=(5a-3b)2-(4b)2. [ by:-a2-b2=(a+b)(a-b) ]

=(5a-3b+4b)(5a-3b-4b)

=(5a+b)(5a-7b)

Answer 2

Answer:

(5a-3b)^2-16b^2

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

(5a-3b)^2-(4b)^2

(5a-3b-(4b)) (5a-3b-4b)

(5a+b)(5a-7b)