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Practice Question:

f(x)= 3x^2 + 4x - 6
g(x)= 6x^3 - 5x^2 - 2

Find (f + g)(x)

Answer Options (Choose one):

A. (f+g)(x) = -6x^3 + 8x^2 + 4x -4

B. (f+g)(x) = 6x^3 + 3x^2 - x - 8

C. (f+g)(x)= 6x^3 - 2x^2 + 4x - 8

D. (f+g)(x)= 9x^3 - x - 8

Respuesta :

The correct option of the function is C. (f+g)(x)= 6x^3 - 2x^2 + 4x - 8.

What is a function?

The function is a type of relation, or rule, that maps one input to specific single output.

Given;

f(x)= 3x^2 + 4x - 6

g(x)= 6x^3 - 5x^2 - 2

So,

(f + g)(x) = (3x^2 + 4x - 6) + (6x^3 - 5x^2 -2)

(f + g)(x) = 3x^2 + 4x - 6 + 6x^3 - 5x^2 - 2

Now, like terms and in order of exponent

(f + g)(x) = 6x^3 - 2x^2 + 4x - 8

Therefore, the correct option is C. (f+g)(x)= 6x^3 - 2x^2 + 4x - 8.

Learn more about function addition ;

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