If 1+1=2, 2+2=8, 3+3=18. What does 4+4=?

Question

IF
1,3,3=5
9,7,4=8
11,14,10=15
20,16,12=18
Than
3,6,7=?

Answer 1

sum the square of the numbers
so, 4+4 = 4^2 + 4^2 = 16+16 = 32

Answer 2

1 + 1 = 2 It can be written as 1 * ( 1 + 1) = 2
2 + 2 = 8 It can be written as 2 * ( 2 + 2 )= 8
3 + 3 = 18 It can be written as 3* ( 3 + 3) = 18
Following the logic
4 + 4 = ? 4 * ( 4 + 4) = 32
The answer is 32

Answer 3

Ans is: 4+4=32