Question

please tell
I will mark u the brainlist ​

Answer 1

Answer:

i. $9x^{2}-12xy+4y^{2}$

ii.$x^{2} +8xy+16y^{2}$

iii.$\frac{x^{2} }{4} +3xy+9y^{2}$

hope this is helpful. if u want further explanation please say so.