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# Suppose 2,1 = 9 4,2 = 18 5,3 = 18 6,3 = 27 then 9,4= ?

Math Patterns are sequences that repeat based on a rule, and a rule is a set way to calculate or solve a problem.

## Answer: 2,1 = 9 4,2 = 18 5,3 = 18 6,3 = 27. Then, then 9,4 = 45 and the solution is 94 - 49 = 45.

Let's try to understand the pattern.

**Explanation:**

The logic applied here is A,B = AB - BA

That means,

- 2,1 = 21 - 12 = 9
- 4,2 = 42 - 24 = 18
- 5,3 = 53 - 35 = 18
- 6,3 = 63 - 36 = 27

Similarly, 9,4 = 94 - 49 = 45.

Thus 9,4 = 45

### Therefore, if 2,1 = 9 4,2 = 18 5,3 = 18 6,3 = 27 then 9,4 = 45.

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