Question

If one zero of the polynomial 2⁢x2−5⁢x−(2⁢k+1) is twice the other, find both the zeroes of the polynomial and the value of k​

Answer 1

Answer:

2×2-5x-(2k+1)

=2×2-5x=0 (2k+1)=0

=4-5x=0 2+1=k

=x=1 k=3

therefore,the value of k=3