Question

Expand: (4a – b + 2c)²​

Answer 1

Answer:

Answer

We have,

(4a−b+2c) ²

=(4a) ²+(−b) ² +(2c) ²+2(4a)(−b)+2(−b)(2c)+2(2c)(4a)

[∵a ² +b²+c ² +2ab+2bc+2ca=(a+b+c) ²]

=16a ² +b ² +4c ² −8ab−4ac+16ca

HERE'S YOUR ANSWER.

MARK ME BRAINLIEST