### 6 Answers

436

BECAUSE

3*3=9-5=4

5*5=25-5=20

21*21=441-5=436

3 9 4 5 25 20 21 441

436

but do you understand why?

just for reference, the pattern starts with a number (in this case 3) and then the next number is the first number squared (9). The third number, 4, appears to be back in succession with the 1st, but in fact it is merely the squared number (9) minus 5.

You can see that as 25 drops to 20.

The pattern starts keeps going so 441-5 = 436

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RE:

complete the sequence please 3 9 4 5 25 20 21 441 answer wil be either 436,442,430,439,454 thanks?

436

436