Factorise the following by using identities:-
9a²-12a+4
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Answered by
8
9a 2-12a +4
By using (a-b)^2 identity
(3a)2 -2.3a.2 +(2)^2
=(3a-2)^2
devikadas:
Plzzz mark as best
Answered by
8
identity: (a-b)^2 = a^2 - 2ab + b^2
9a^2 - 12a + 4
=(3a)^2 - 2*3a*2 + (2)^2
=(3a -2)^2
9a^2 - 12a + 4
=(3a)^2 - 2*3a*2 + (2)^2
=(3a -2)^2
hope it helps you!!
lichen i think u have to simplify it more
u can simplify by a-b^2
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