please solve it, see pic
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a(1- 64a^2)
=> a[( 1 -(8a)^2)]
=> a[(1-8a)(1+8a)]
(ii)....1+ 2ab - a^2 -b^2
=> 1 - ( a^2 + b^2 - 2ab )
=> 1 - (a- b ) ^2
=>( 1)^2 - (a-b)^2
=> ( 1-a+b) ( 1 +a-b).
=> a[( 1 -(8a)^2)]
=> a[(1-8a)(1+8a)]
(ii)....1+ 2ab - a^2 -b^2
=> 1 - ( a^2 + b^2 - 2ab )
=> 1 - (a- b ) ^2
=>( 1)^2 - (a-b)^2
=> ( 1-a+b) ( 1 +a-b).
abhishek664:
sry i am busy so i can't solve it now
Thanks a lot
I understand
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