MichaelFluker09 MichaelFluker09
  • 20-08-2020
  • Mathematics
contestada

Find f(−1) given that f(x)=x3+2x2+3x+4.
A. 10
B. -2
C. 2
D. -10

Respuesta :

Stephen46
Stephen46 Stephen46
  • 20-08-2020

Answer:

The answer is option C

Step-by-step explanation:

f(x) = x³ + 2x² + 3x + 4

To find f(-1) substitute the value of x that's

- 1 into f(x)

That's

[tex]f( - 1) = ({ - 1})^{3} + 2 ({ - 1})^{2} + 3( - 1) + 4 \\ = - 1 + 2(1) - 3 + 4 \\ = - 1 + 2 - 3 + 4 \\ = 1 - 3 + 4[/tex]

We have the final answer as

[tex]f( - 1) = 2[/tex]

Hope this helps you

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