You have to add the last number to itself. So the next number would be 32 because 16 + 16 equals 32. Then you add 32 + 32 so the next number would be 64
1, 2, 4, 8, 16, 32, 64, 128
2x2 + 5x + 3
= (2x +
<span>)(x + 1)
and the answer is 3</span>
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