Question

If one root of px - 3x - 5 = 0 is 5/2 then the value of p is
(b) - 2
(a) - 5
(d) 5.
(e) 2
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Answer 1

Answer

(a). -2 options is right

Answer 2

put x = 5/2 as it is a zero of px

you will get answer automatically by solving equation himself...