factorise 1 - 64 acube minus 12 a - 48 a square please give answer fast
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Hi There Mate!!!!
let me help you
see, tnis is a very simple question. what you have to do is:-
1-64a^2 -12 a-48a^3
[ 1 - (4a)^2 ] - [ -12a + 48a^3]
[ 1 - (4a)^2 ] -12a [ -1+ 4a^2]
:.[ 1 - (4a)^2 ] +12a [ 1-4a^2]
:.(12a+1)+(1-4a^2)
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