Question

please solve this sum by step by step​ and i will mark as brainlist​

Answer 1

Answer:

A=B=C

(X-A)(X-B)+(X-B)(X-C)+(X-C)(X-A)

SUBSTITUTE B FOR A OR C

X²-A² +X²-A²+X²-A²=0

3X²=3A²

CANCEL 3

TAKE SQUARE ROOT

X=A

3X²=3A²

X=X

THEREFORE HENCE PROVEN

FOLLOW ME.

MARK AS BRAINLIEST