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prateek sharma

· started a discussion

· 1 Months ago

short method?

Question:

If x =  a+b-a-ba+b+a-b   , then what is the value of bx2 – 2ax + b (b     0)

Options:
A)

0

B)

1

C)

2ab

D)

ab

Solution:

Ans: (a)

  

CHETAN

· commented

· 1 Months ago

put a,b =2

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