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Substitute the first 3 values in (1, 2, 3)

(1)^2 + 20 = 21

(2)^2 + 20 = 24

(3)^2 + 20 = 29

The first 3 terms would be 21, 24 and 29

For the second part, just keep going on until you reach 50

(4)^2 + 20 = 36

(5)^2 + 20 = 45

(6)^2 + 20 = 20 = 56 (this is larger than 50 so it doesn't count)

It would be 5 terms

Hope This Helps You

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