If (3 + 2√5)2 = 29 + K√5, then what is the value of K?
A. 12
B. 6
C. 29
D. 39
Answer: Option A
Solution (By Examveda Team)
(3 + 2√5)2 = 29 + K√5⇒ 9 + 20 + 12√5 = 29 + K√5
⇒ 29 + 12√5 = 29 + K√5
⇒ K√5 = 12√5
⇒ K = 12
This Question Belongs to Arithmetic Ability >> Algebra
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