(i) 8a+ b3 + 12a²b + 6ab2
(iii) 27 -125a - 135a +225a
is dono me se koi v bata do koi please if u know
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(1.) 8a + b³ + 12a²b + 6ab²
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8a³+ b³ + 12a²b + 6ab²
=(2a) ³ + (b)³ + 12a²b + 6ab²
=(2a) ³+ (b)³ +6ab (2a+b)
=(2a) ³ + (b)³ + 3 (2a) ( b) (2a+b)
Using (x+y)³ =x³+ y³+ 3xy (x+y)
putting x=2a , y=b
=(2a + b³)
= (2a + b) (2a +b) (2a + b)
Hope it helps u
The third one is in that pic OK
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