Question

value of (a+b) (a-b) + (b-c) (b-c) +(c+a) (c-a)​

Answer 1

Answer:

Solution–

a²-b²+b²+c²-2bc+c²-a²

Step-by-step explanation:

2c²-2bc

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Answer 2

Answer:

Step-by-step explanation:

Given that,

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

= a² - b² + b² - c² + c² - a²

= ( a² - a² ) + ( b² - b² ) + ( c² - c² )

= 0 + 0 + 0

= 0 is the answer.