Question

F(x)=9x³ - x² + 2; f(2)

f(2)=

Answer 1

`\underline{ \boxed{\huge \sf \green {Answer :}}}`

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Given Function :

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`\large \tt\: f ( x ) = 9x³ - x² + 2`

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Now , put x = 2 in given function :

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`\large \tt \: f ( 2 ) = 9(2)³ - (2)² + 2`

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`\large \tt \: f ( 2 ) = 9(8) - (4) + 2`

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`\large \tt \: f ( 2 ) = 72 - 4+ 2`

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`\large \tt \: f ( 2 ) = 68+ 2`

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`\color{pink} {\boxed{\large \tt \: f ( 2 ) =70 \: ✓} }`

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Hope Helps!

Answer 2

f(2) = 70

Explanation:

Hello!

To evaluate for f(2), we can simply plug in 2 for x in the equation and simplify.

Evaluate

• 
  `f(x) = 9x^3 - x^2 + 2`
• 
  `f(2) = 9(2)^3 - (2)^2 + 2`
• 
  `f(2) = 72 - 4 + 2`
• 
  `f(2) = 70`

The value of f(2) is 70.