Question

Find the value of k for quadratic equation ,so that they have two

equal real roots……2k2+kx+2=0
​

Answer 1

Answer:

k=0 or 4

Step-by-step explanation:

It is given that the roots are equal.so, we can use the formula b^2 -4ac=0

b=k, a=2k,c=2

by substituting the values

k^2-4(2k)(2)=0

k^2-16k=0

k(k-4)=0

k=0 or k=4.