Question

1+4=5, 2+5=12,3+6=21, 5+8=_​

Answer 1

Step-by-step explanation:

1+4=5 (1×4+1)

2+5=12(2×5+2)

3+6=21(3×6+3)

5+8=45(5×8+5)

:)

We have used a×b+a technique above.

Answer 2

Step-by-step explanation:

hope it helps.

please mark as brainliest answer.