9. If a b = b c prove that (a+b+c) (a-b+c) = ( a ² +b ² +c ² )yar – InterviewSolution

1.	9. If a b = b c prove that (a+b+c) (a-b+c) = ( a ² +b ² +c ² )yar question niche ho gaya hai pls don't write clan anwers
Answer» -STEP explanation:if ab= BCTHEN (a+b+c ) will be equal to a2+b2+C2 CORRECT

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