Question

expand (qr+8)^2 using identity
I want step by step pls help me I will make you as ​

Answer 1

Answer:

q^2r^2+16qr+64

Step-by-step explanation:

identity: (a+b)^2=a^2+2ab+b^2

a=qr ; b=8

(qr+8)^2=(qr)^2+2(qr)(8)+8^2

=q^2r^2+16qr+64