Question

Find value of k,if the quadratic equation is 4x^2-3kx-9=0 has equal roots

Answer 1

Answer:

if it has equal roots

then, D =0

D=b^2-4ac

0=(-3k)^2 + 4×4×-9

0= 9k-144

144=9k

k=16

Hope it helps.....

Answer 2

Hope you'll get it ......