if one zero of the polynomial 3 x square - 8 x + 2 k + 1 is 7 times the other then find the zero of the zero and the value of k
Answers
Answered by
7
Answer:
K=2/3
Step-by-step explanation:
Let roots be m and n,
m+n=8/3
Now n=7m
So,8m=8/3
m=1/3
mn=(2k+1)/3
7*(1/3)^2=(2k+1)/3
7/9=(2k+1)/3
7=3(2k+1)
7=6k+3
4=6k
k=4/6
k=2/3
Similar questions