Question

If (3x - 2) is a factor of 3x - kx + 21x - 10 find the value of k.​

Answer 1

Answer:

-3/16

Explanation:

3x-2=0

3x=2

x=2/3

then, substitute x value in p(x)=3x-kx+21x-10

3x-kx+21x-10=0

3(2/3)-k(2/3)+21(2/3)-10=0

6/3-2/3k+42/3-10=0

2-2/3k+14-10=0

4/3k+4=0

4+4/3k=0

16/3k=0

k=-3/16