a^3-b^3
what is the formula?
Answers
Answered by
3
Hola there,
=> a³ - b³ = (a - b)(a² + b² + ab)
Hope this helps....:)
=> a³ - b³ = (a - b)(a² + b² + ab)
Hope this helps....:)
Answered by
6
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→ ( a³ - b³ ) = [ a³ - 3a²b + 3ab² - b³ ] + 3ab( a - b )
= [ a - b ]³ + 3ab( a - b )
= [ a - b ][ a² - 2ab + b² + 3ab ]
= [ a - b ][ a² + ab + b² ]
_________________________________________________________
→ ( a³ - b³ ) = ( a - b )( a² + ab + b² )
• The Derivation : ↑
→ ( a³ - b³ ) = [ a³ - 3a²b + 3ab² - b³ ] + 3ab( a - b )
= [ a - b ]³ + 3ab( a - b )
= [ a - b ][ a² - 2ab + b² + 3ab ]
= [ a - b ][ a² + ab + b² ]
_________________________________________________________
→ ( a³ - b³ ) = ( a - b )( a² + ab + b² )
• The Derivation : ↑
Anonymous:
U left (a - b) in the last line :)
Nîçè answer....(understandable)..
=_= Yeah ! Trolling on the wrong answer ( T T )
Nope
What's wrong in the Answer?
=_= Everything WAS
??
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