please factorize it quickly
Attachments:
Answers
Answered by
1
hey friend,
hope it will help u.
refer to given attachment.
hope it will help u.
refer to given attachment.
Attachments:
ayushkumar19:
thanks
Answered by
2
Hi ,
********************************
We know the algebraic identity ,
a³ + b³ + c³ - 3abc
= ( a + b + c ) [ a² + b² + c² - ab - bc - ca ]
**********************************
Now ,
27x³ + y³ + z³ - 9xyz
= ( 3x )³ + y³ + z³ - 3 × 3x × y × z
= ( 3x + y + z ) [ (3x )² + y² + z² - ( 3x )y - yz - z ( 3x ) ]
= ( 3x + y + z ) [ 9x² + y² +z² - 3xy -yz - 3zx]
I hope this helps you.
: )
********************************
We know the algebraic identity ,
a³ + b³ + c³ - 3abc
= ( a + b + c ) [ a² + b² + c² - ab - bc - ca ]
**********************************
Now ,
27x³ + y³ + z³ - 9xyz
= ( 3x )³ + y³ + z³ - 3 × 3x × y × z
= ( 3x + y + z ) [ (3x )² + y² + z² - ( 3x )y - yz - z ( 3x ) ]
= ( 3x + y + z ) [ 9x² + y² +z² - 3xy -yz - 3zx]
I hope this helps you.
: )
Similar questions