Question

expand (x÷4 - y÷2 +3 )^2



can anyone answer this pls ​

Answer 1

Step-by-step explanation:

Expansion of (a+b+c)^2=a^2+b^2+c^2+2(ab+bc+ca)

(x/4-y/2+3)^2

=(x/4)^2+(-y/2)^2+(3)^2+2[x/4(-y/2)+(-y/2)3+3(x/4)]

=x^2/16+y^2/4+9+2(-xy/8-3y/2+3x/4)

=x^2/16+y^2/4+9-xy/4-3y+3x/2

=x^2/16+y^2/4-xy/4+3x/2-3y+9