If equation 4x^(2)+2pxy+25y^(2)+2x+5y-1=...

If equation `4x^(2)+2pxy+25y^(2)+2x+5y-1=0`
represents parallel lines, then p is equal to

A

(a) `-10`

B

(b) `10`

C

(c) `5`

D

(d) `-2`

Verified by Experts

The correct Answer is:

B

NA

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