Question

(a-b-c)2 - (a+b+c)2 what is the answer of this pls say to me pls

Answer 1

Answer:

solve easily by using identities and expressions

Answer 2

Step-by-step explanation:

(a-b-c)2 - (a+b+c)2

It is in the form a² - b² = (a+b) (a-b)

= [ (a-b-c) + (a+b+c) ] [ (a-b-c) - (a+b+c) ]

= [ a-b-c + a+b+c ] [ a-b-c - a-b-c) ]

= 2a x (-2b - 2c)

= 2a x -2 (b + c)

= -4a(b + c)