Question

If alpha,beta are the zeros of polynomial p(x)=x*-(x+6)x+2(2k-1) then find k?

Answer 1

p(x)=x2-(k-6)x+(2k+1)=0 Given: alpha + beta = alpha*beta sum of roots = product of roots k-6=2k+1 k=-7

Answer 2

plz refer to this attachment