Question

find the value of k in the equation 9x^2 +3kx+4=0​

Answer 1

Hope it will help you!!!!!!

Answer 2

Hey,

Your Answer:

Since the roots are equal, we can write

D = b²-4ac

0= (3k)² - 4x9x4

0= 9k²- 144

144 = 9k²

144/9 = k²

16 = k²

4 = k