Question

(7x-2)(7xy+7) use identities only​

Answer 1

Step-by-step explanation:

(7xy - 2)(7xy + 7)

=(7xy)

2

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

2

+(a+b)x+ab ]

=49x

2

y

2

+35xy−14

hope it helps