Question

if alfa and beeta are the zeores if the polynomial 2y2+7y+5 then find the value of (1)alfa+beeta+alfabeeta,(2)1/alfa+1/beeta

Answer 1

The answer is in photograph

Answer 2

Alpha +bits=b/a
=7/2

Alpha.bita=c/a
=5/2
Alpha +bita+Alpha.bita=7/2+5/2
=12/2
=6