Question

1+1=8
2+2=32
3+3=72
4+4=?

Answer 1

4+4=128
the pattern is something like this that the we are adding the numbers that are serially being multiplied by the multiples of 4 :-

1(4) + 1(4) = 8  <1is being multiplied by 4 than is added with another 1 that is multiplied by 4>

2(8) + 2(8) = 32

3(12) + 3(12) = 72
 
4(16) + 4(16) = 128 <similarly as in the case of 1+1, here, 4 is first multiplied by 16            and then in added with 4 that is also multiplied by 16>

Answer 2

=128

i try to explain it
2×2=4 ,   8 ×4= 32
3(12) × 3(12) =72
4(16) × 4(16) =128

...hope it would helpful to u