Question

If one zero of a polynomial
3x2 - 8x + 2k + 1 = 0 is seven times
the other then k = .......... [ ]
A)2/3 B)1/3 C)1 D) none​

Answer 1

3x2-8x+2k+1=0

3(7)2-8(7)+2k+1=0

98-56+2k+1=0

43+2k=0

2k=-43

k=-43/2

k=-21.5