Question

Q8-After simplification,value of given expression is (a-b)(a+b)+(b-c)(b+c)+(c-a)(c+a​

Answer 1

Answer:

0

Step-by-step explanation:

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

by formula (x+y)(x-y)=x²-y²

a²-b²+b²-c²+c²-a²

so all terms will cancel

and answer is 0

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Answer 2

Answer:

0

Step-by-step explanation:

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

=a^2-b^2+b^2-c^2+c^2-a^2

=0