) (9x + 2y +z) power 2
Answers
Answered by
7
Solution:
__________________
We know the algebraic identity:
(a+b+c)²
= a²+b²+c²+2ab+2bc+2ca
__________________
Here,
(9x+2y+z)²
=(9x)²+(2y)²+z²+2(9x)(2y)+2(2y)z+2*z*(9x)
= 81x²+4y²+z²+36xy+4yz+18zx
••••
Answered by
1
Answer:
Step-by-step explanation:
Attachments:
Similar questions