The quadratic polynomial whose sum and product of its zeroes as 5 and -14 is
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let the quadratic equation be ax²+bx+c
let its zeroes be
and beta.
given : alpha + beta = 5
therefore, alpha = 5 - beta
and : alpha × beta = -14
(5- beta )×beta =-14
5beta - (beta)² =-14
or
( beta )²-5beta -14=0
☆ (beta)² -7beta +2beta -14=0
beta (beta -7) +2(beta-7) =0
(beta +2)(beta-7) =0
beta =-2 or beta =7
if beta =-2 then alpha =5- beta = 5-(-2)=7
if beta =-2 then alpha =5- beta = 5-(-2)=7if beta =7 then alpha =5- beta =5-(7) = -2...
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