Question

Expand: (4a – b + 2c)∧2.

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

We have,

(4a−b+2c)

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

[∵a 2 +b 2 +c 2+2ab+2bc+2ca=(a+b+c) 2 ]

=16a 2 +b 2+4c 2 −8ab−4ac+16ca