Math, asked by divyanshikhatri8, 8 months ago

Use the identity ,find the product:- ( 9xy+8) (9xy-7)

Answers

Answered by mdmdarshad67

0

Step-by-step explanation:

(9xy+8)(9xy-7)

=9xy×9xy-9xy×7+8×9xy-8×7

=81x^2y^2-63xy+72xy-56

=81x^2y^2+9xy-56

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