Question

(ii) (6 - 4 a – 7 b)2 expansion of the following​

Answer 1

meri gf bsnogi kya bolo ns

Answer 2

Step-by-step explanation:

(a+b)2=a2+b2+c2+2(ab+bc+ca)

[(6+(-4a)+(-7b)]=(6)2+(-4a)2+(-7b)2+2[6(-4a)+(-4a)(-7b)+(-7b)(6)

36+16a2+49b2=2[-24a+28ab-42b]

36+16a2+49b2=-48a+56ab-84b