Math, asked by piyush233396, 9 months ago

19. Factorise: 1) 9a²-9

Answers

Answered by Tanishk82

1

Step-by-step explanation:

9(a^2-1)

9(a^2-1^2)

9(a+1)(a-1)

hope you understand

Answered by PushpendarBhadauria

1

Answer:

(3a-3)(3a+3) this.. is the answer.. hope it helps u.

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