Question

expand the following

(3p+4p-r)²​

Answer 1

Answer:

(3p+4q-r)^2

=(3p)^2+(4q)^2+(r)^3+2.3p.4q+2.4q.(-r)+2.(-r).3p

=9p^2+16q^2+r^2+24pq -8qr-6pr