Question

find square by using identity: (7xy-3x) ^2​

Answer 1

Answer:

49x²y²-42x²y+9x²

Step-by-step explanation:

answer is in the attachment

hope this helps

please mark me brainliest

Answer 2

Answer:

please mark me as brainlest

Step-by-step explanation:

(7xy)2+(−2+7)×(7xy)+(−2)×7  [Using, (x+a)(x+b)=x2+(a+b)x+ab ]

=49x2y2+35xy−14