Question

plz telllllllllllllllllllll​

Answer 1

Step-by-step explanation:

Let p(x)=7x²+kx-3=0

if 2/3 is solution

then value of k is,

p(1/2)=7*1/2*1/2+k*1/2-3=0

7/4+1/2k=3

1/2k=3-7/4

1/2k=12-7/4

1/2k=5/4

k=5/4*2

k=5/2

hope this helps you