Respuesta :

kphung76127
Put the two equations together and combine like terms

3x^2+5x^2-2x+6x+4-8
8x^2-2x+6x+4-8
8x^2+4x+4-8
8x^2+4x-4

Final answer: C

Answer:

Option C is correct

[tex](f+g)(x)=8x^2+4x-4[/tex]

Explanation:

Given the function:

[tex]f(x) = 3x^2-2x+4[/tex]

[tex]g(x) = 5x^2+6x-8[/tex]

[tex](f+g)(x) =f(x)+g(x)[/tex]

Substitute the given values we have;

[tex](f+g)(x) = 3x^2-2x+4+5x^2+6x-8[/tex]

Combine like terms;

[tex](f+g)(x) = 8x^2+4x-4[/tex]

Therefore the value of [tex](f+g)(x)[/tex] is, [tex]8x^2+4x-4[/tex]