Question

9 a square - b square​

Answer 1

Answer:

(3a+b)(3a-b)

Step-by-step explanation:

9a²-b² = (3a)²-(b)² = (3a+b)(3a-b)

Answer 2

FORMULA : a square + b square =( a+b)(a-b)

Now,

9 a square - b square

= (3a) square - (b) square

= (3a-b)(3a+b)

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