find the value of k such that difference between the zeroes of quadratic polynomial x2-5x+3 (k-1)is 11
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Let the zeroes be a and b
Its given that a-b=11........(i)
and from the equation,
a+b=5.........(ii)
adding (i)and(ii),we get,
2a=16
a=8
now putting a in (ii),
we get b=-3
since ab=3(k-1)
-24=3(k-1)
-8=k-1
k=-7
Its given that a-b=11........(i)
and from the equation,
a+b=5.........(ii)
adding (i)and(ii),we get,
2a=16
a=8
now putting a in (ii),
we get b=-3
since ab=3(k-1)
-24=3(k-1)
-8=k-1
k=-7
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