Question

WHAT NO. SHOULD REPLACE THE ?
4,2=36
3,7=100
5,4=81

Answer 1

Solution :

i )( 4+2 )² = 6² = 36

ii ) ( 3+7 )² = 10² = 100

iii ) ( 5+4 )² = 9² = 81

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Answer 2

I actually couldn't understand ur question,

But I've seen the analogy of the question, I'm solving it to some extent, hope it'll help you to solve further.

Let's assume the first number as A, second number as B and the answer as C

Then it can be written, A,B = C

for series one, A = 4 ; B = 2 & C = 36

A relation has been observed here,

(4+2)² = 36

(3+7)² = 100 (for series two)

(5+4)² = 81 (for series three)

thus in general it can be written as

A, B = C  ≡  (A+B)² = C