Question

Factorize the following by formula a^2-b^2
A^2-(2a+3b)^2

Answer 1

Answer:

Step-by-step explanation:step1

(2a+3b)^2 = 4a^2 +12b +9a^2

Step 2

-3a^2 - 12ab -9b^2= -3(a^2+4ab+3b^2)

a^2+4ab+3b

(a+ 3b).(a+b)

Result

-3.(a+3b).(a+b)