mattthhh , i need help


Given the functions j(x) = x2 + 3 and k(x) = x2 − x + 4, which operation results in a 2nd degree polynomial?

a. Addition
b. Subtraction
c. Multiplication
d. No operations

Respuesta :

For this case we have the following functions:
 [tex]j (x) = x ^ 2 + 3 k (x) = x ^ 2 - x + 4[/tex]
 An operation that results in a polynomial of the second degree is the sum of both functions.
 When adding the functions we have:
 [tex]j (x) + k (x) = (x ^ 2 + 3) + (x ^ 2 - x + 4) [/tex]
 Rewriting we have:
 [tex]j (x) + k (x) = 2x ^ 2 - x + 7 [/tex]
 The result is a second-degree polynomial
 Answer:
 
An operation that results in a 2nd degree polynomial is:
 
a. Addition