Question

# Find the value of a growniche le faleving equation has egun Find the values of k for which the following equation has equal roots : (k-12) x2 + 2 (k-12) x + 2 = 0

Solution

(K-2)n +ack-12n+2=0
equation has ean roots
iff
6.49c=0
2Ck_23 _ 4 (K-2) X2=0
(K-2) ( 4(K-2) – 8] -0
K=2 or 4K-8-800
- Ak=16
K-4
for k=a or 4 the
equation has real
root