tolong jawab nomor 6,7,8,dan 9 pakai cara

nomor 6 (3×5)² =3×3=9
=5×5=25
9×25= 225
(35:7)²=35×35=1225
=7×7=49
= 1225 : 49 = 25
=25×4=100
=100 + 225 =325
c 325 maaf kalau salah