Question

(7xy - 2)(7xy + 7)
using identities ​

Answer 1

Answer:

(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

Step-by-step explanation:

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Answer 2

Answer:

49x²y²+35xy-14 is your answer

Step-by-step explanation:

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