Question

expand (xy+3z)square using identity​

Answer 1

hey the answer is ...


hope it helps uu

Answer 2

Answer:

$\sf \: Using , \\ \sf(a+b)^2=a^2+b^2+2ab \\ \sf =(xy)^2+(3z)^2+2(xy)(3z) \\ \sf=x^2y^2+9z^2+6xyz$