Question

Factorise : 9a²-(a²-4)²

Answer 1

here is ur answer...

Answer 2

Hey user !!

Here is your answer !!

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↪9a^2 - (a^2 - 4 )^2

↪(3 a)^2 - (a^2 -4 )^2

↪(3 a - (a^2 -4 )) (3a + (a^2 -4))

↪(3 a - ( a^2 - 2^2)) (3 a + (a^2 -2^2))

↪(3 a - (a - 2)(a+2)) (3 a + (a +2)(a-2))

Hope it is satisfactory :-)

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