Question

2x2 + kx + 3 = 0. Find the values of k for each of the following quadratic equations,so that they have two equal
roots

Answer 1

Step-by-step explanation:

If 2x

2

+kx+3=0 has equal roots, then b

2

−4ac=0.

Here, a=2,b=k,c=3

x

2

+kx+3=0

b

2

−4ac=0

k

2

−4(2)(3)=0

k

2

=24

k=±

24

=±2

6