Respuesta :

sakshamrijal2527

Answer:

a-b=±3 is the answer

Explanation:

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jayalalitha637

Answer:

C) 9

Step-by-step explanation:

Replace a^2-b^2 with (a+b)(a-b)

Therefore, (a+b)(a-b)/9=a+b

or, (a-b)/9=1

or,a-b=9

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