Respuesta :

Space

Answer:

(k × f)(x) = 2x³ + x²

General Formulas and Concepts:

Algebra I

  • Functions
  • Function Notation
  • Expand by FOIL

Step-by-step explanation:

Step 1: Define

Identify

f(x) = x²

k(x) = 2x + 1

(k × f)(x) = k(x)f(x)

Step 2: Find

  1. Substitute in functions:                                                                                     (k × f)(x) = x²(2x + 1)
  2. Expand [FOIL]:                                                                                                  (k × f)(x) = 2x³ + x²

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