Math, asked by bordenilesh1p52n1i, 1 year ago

27m3 - 1/216 - 9/2m2 + 1/4m

Answers

Answered by mysticd
4
Hi ,

27m³ - 1/216 - ( 9/2 ) m²+ ( 1/4 ) m

= ( 3m )³ + ( -1/6 )³+ 3( 3m)² ( -1/6)+3(3m)( -1/6)²

= ( 3m - 1/6 )³

[ a³ - b ³ - 3a²b + 3ab² = ( a - b )³ ]

I hope this helps you.

: )

AlwysGonaHelpSome12: i think its wrong
AlwysGonaHelpSome12: it should be this:- (18m - 1)3
——————————
216
mysticd: ( 3m - 1/6 )³ = [ ( 18m - 1 )/6 ]³
mysticd: = ( 18m - 1 )³ / 216
mysticd: is it clear know
AlwysGonaHelpSome12: yes being a teacher you can always correct someone:)
mysticd: both answers are same .
mysticd: you can get full marks for first answer also.
Anonymous: Yes. Both the answers are correct.
mysticd: : )
Answered by Anonymous
1
Hi,

Please see the attached file!


Thanks
Attachments:

AlwysGonaHelpSome12: correct!
Similar questions