Question

21,25,33,49,81,?
$no formula$
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Answer 1

Answer:

what is the question first spell it

Answer 2

Answer:

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Step-by-step explanation:

21 + 4 = 25

25 + 8 = 33

33 + 16 = 49

49 + 32 = 81

∴ 81 + 64 = 145