Question

Find the value of k when the value of x is 2/3 kx2 - x - 2 =0

Answer 1

Answer:

k=6

Step-by-step explanation:

As stated, x=2/3, so you need to eval in the whole expression given

$k*x^{2} -x-2=0$

which becomes the following>

$k*(\frac{2}{3}) ^{2}-\frac{2}{3} -2=0$

Solving for K gives>

$k=(2+\frac{2}{3})*\frac{9}{4}\\k=(\frac{9}{2} +\frac{3}{2})$

$k=\frac{12}{2}$