Question

b) (a + b + c)2 – (a - b - c)2 factorisation step by step it urgently ​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

Step-by-step explanation:

The answer is

=using (x+y+z)² - (x-y-z)²

= a²+b²+c²+2ab+2bc+2ca-a²+(-b)²+-(-c)²+2(-a)(-b) +2(-b)(-c)+2×-c×-a

=4ab+4bc+4ca