Question

(99)^2 expand with the identity (x-y)^2​

Answer 1

Answer:

u can write 99^2 as (100-1)^2

Step-by-step explanation:

then apply this identity (x-y)^2 = x^2-2xy+y^2

=> (100)^2-2(100)(1)+(1)^2

=>10000-200+1

=>8001

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