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Find (3) if f(x)=x2 + 2x2-x-1
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1 vote
Find (3) if
f(x)=x2 + 2x2-x-1

User Jonathan Giddy
by
6.9k points

1 Answer

5 votes

Answer:

The correct answer is:


f(3)=23

Explanation:

By evaluating first, and then the mathematical calculation, we have:


f(3)= 3^(2) + 2 ×3^(2) - 3 -1


= 9 +18 -3-1


= 23

User Uberrebu
by
7.4k points
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