3 years ago

Evaluate the function below for x=3 f(x)=2x^3-x^2-4x+9

Mathematics

2 answers:

Andrej [43]3 years ago

8 0

Answer:

Apex: 42

Step-by-step explanation:

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elixir [45]3 years ago

6 0

Hello,

f(x)=2x^3-x^2-4x+9=(((0+2)x-1)x-4)x+9

f(3)=(((0+2)*3-1)*3-4)*3+9=((2*3-1)*3-4)-3+9=(5*3-4)*3+9=11*3+9=33+9=42

or

f(3)=2*3^3-3^2-4*3+9=2*27-9-12+9=54-12=42

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