Question

plz help me if you know the answer . it from factorisation.​

Answer 1

Step-by-step explanation:

given a^2+5a+4/a^2-16 ÷ a^2-9/a^2-a-12 ....(1) now after factorisation eqn(1) can written as (a+4)(a+1)/(a+4)(a-4) ÷ (a+3)(a-3)/(a-4)(a+3) = (a+1)/(a-3)