Question

The equation 12x² + 4kx + 3 = 0 has real and equal roots, if

Answer 1

Answer:

k= +/- 3

Step-by-step explanation:

b^2-4ac = o

(4k)^2-4*12*3= 0

16k^2-144= 0

16k^2=144

K^2= 144/16= 9

so, k = √9= +3,-3