hey !! help me!!
full explanation !
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Heya..!!!!!given that:-
the zeroes of the Quadratic polynomial
px² + qx + r, (r not equal to 0)
D = b² - 4ac = 0
=> q² - 4pr = 0
=> q² = 4pr
since,L.H.S (q²) can never be negative
AND,
also R.H.S (4pr) can never be negative
then,
(p and r must be same sign)
if p and r have opposite sign, then p and r will be negative sign which is never possible
HENCE, option (3) is correct
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