Math, asked by theconfusedone, 2 months ago

(7xy-2)(7xy+7) using identities

Answers

Answered by harshit0809007

1

Answer:

7xy-72

Step-by-step explanation:

Answered by utsavdasgupta9

0

Step-by-step explanation:

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

7xy(7xy+7)-2(7xy+7) [(a+b)(a+b)=a(a+b)+b(a+b)]

49x^2y^2+49-14xy-14

49x^2y^2-14xy+49-14

7xy(7xy-2)+35

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