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here a=2,b=-k and c=k
now,
b2-4ac=0
(-k)2-4 (2)(k)=0
k2-8k=0
k2 = 8k
k=sq of 8k
k=4×2k
k=2×sq of 2k
sq k×sq k=2 ×sq 2× sq k
sq k=2× sq 2
k= sq × 2 ×sq sq 2
k=2× sq 2
HOPE IT HELPS U
If right pls mark as brainlist
now,
b2-4ac=0
(-k)2-4 (2)(k)=0
k2-8k=0
k2 = 8k
k=sq of 8k
k=4×2k
k=2×sq of 2k
sq k×sq k=2 ×sq 2× sq k
sq k=2× sq 2
k= sq × 2 ×sq sq 2
k=2× sq 2
HOPE IT HELPS U
If right pls mark as brainlist
Anushachavan123:
pls mark as brainlist
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