Expand using appropriate identity: a)(5x + 5y + z)^2
Answers
Answered by
1
Answer:
Identity used :-( x+ y + z) ² = x² + y² + z² + 2xy +2yz + 2xz
(5x + 5y + 5z)²
25 x² + 25 y² + 25 z² + 50xy +50 yz + 50 xz
5xyz ( 5x + 5y +5z + 10 + 10 + 10 )
5 xyz ( 5x + 5y + 5z + 30 )
Hope it helps!
Similar questions