if p and q are the roots of the equation x^2 + px + q =0 then
a)--- p=1
b)--- p = 1 or 0
c)--- p = -2
d)--- p = -2 or 0
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if p and q are the roots of the equation x^2 + px + q =0 then
a)--- p=1
b)--- p = 1 or 0
c)--- p = -2
d)--- p = -2 or 0