Math, asked by abhinavkumar00737, 7 months ago

(y - 9z)^2
explain using suitable identities​

Answers

Answered by lingaauditor9
0

Step-by-step explanation:

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Answered by satya11103
0

Answer

(y -9z)²

• [ we know the identity (a -b)² = a² -2(a)(b) +b² ]

=> y² -2(y)(9z) +(9z)²

=> y² -18yz +81z²

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