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Let n = 2.5. what is the value of 2n(6n-3)+4n?

Let n = 2.5. what is the value of 2n(6n-3)+4n?
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1 vote
Let n = 2.5. what is the value of 2n(6n-3)+4n?

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User Coletta
by
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2 Answers

4 votes

2n(6n-3)+4n

substitute
n=2.5


2*2.5(6*2.5-3)+4*2.5=5(15-3)+10=60+10=70
answered
User Tuan Anh Tran
by
7.8k points
0 votes

n = 2.5, \ \\\\\ 2n(6n-3)+4n = 12n^2 - 6n +4n =12n^2-2n\\ \\12n^2-2n=12 *(2.5)^2-2*2.5=12*6.25-5=75-5=70


answered
User Steve Reno
by
8.3k points
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