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Use the formula to evaluate the series -3+6-12+24
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1 vote
Use the formula to evaluate the series -3+6-12+24

User Parth Doshi
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2 Answers

1 vote
i believe the answer is 15
User Chucknelson
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7.1k points
4 votes
-3+6-12+24
= -3(1 - 2) - 12(1-2)
= (1 - 2)(-3 - 12)
= (-1)(-15)
= 15
User Edhnb
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6.8k points
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