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F(x)=-3x^2+9x-8 Find f(5)

F(x)=-3x^2+9x-8 Find f(5)-example-1
User Jakob Borg
by
5.2k points

2 Answers

2 votes

-3(5)^2+9(5)-8

answer:

-38

User WildCrustacean
by
4.7k points
3 votes

Answer:

-38

Explanation:

You replace the x with 5.

turns it into -3 (5)^2+9(5)-8

-3(25)+45-8

-75+45=-30-8=-38

User Avyaan
by
4.7k points