Question

If a/b = b/c prove that (a+b+c)(a-b+c) = (a^+b^+c^)​

Answer 1

Answer:

A+b-c/a+b = -c(a+b/a+b=0)

b+c-a/b+c = -a

c+a-b/c+a = -b

so -c = -a = -b

therefore, a=b=c

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Answer 2

Please refer the image attached below: