find the range of values of k if the quadratic equation (k+1)x²+3k+5=8kx has real values of x

and

find the range of values of k if each of the quadratic equations

(i)kx²+4x+k=3 (ii) kx²+kx+1=3x has real roots

i tried to solve them but i couldnt manage and tmrw i need to hand them in!