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Gopi Krishna

· started a discussion

· 1 Months ago

very easy because of options (Question: 368348.0 )

put x=2a then ka^2 is perfect square when k is perfect square
only perfect square in the options is 16
so k=16

Question:

If (x – 2a)(x – 4a)(x – 6a)(x – 8a) + ka4 is perfect square, then find the value of k?

Options:
A)

32

B)

16

C)

8

D)

10

Solution:

Ans:(b) 

  

Knowledge Expert

· commented

· 1 Months ago

Dear Student,
Yes definitely you can solve by going with the options also.
Keep learning with us.

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