Question

If ½ is a root of the quadratic equation 4x²- 6kx + k + 7 = 0,the value of k is ___​

Answer 1

Answer:

k= -1/2

Step-by-step explanation:

4x²+4kx-0=0

now substitute x=1/2in the equation then

4(1/2)²+4(k)(1/2)-0=0

4(1/4)+4k(1/2)=0

1+2k=0

k=-1/2

HOPE IT HELPS YOU

Step-by-step explanation: