hi i was wondering if someone could help me answer this I'm really confused you dont have to give a explanation i just need help

f(-4) = -28

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Function Notation

Step-by-step explanation:

Step 1: Define

f(x) = -x² + 3x

f(-4) is x = -4

Step 2: Evaluate

Substitute:                   f(-4) = -(-4)² + 3(-4)Exponents:                  f(-4) = -(16) + 3(-4)Multiply:                       f(-4) = -16 - 12Subtract:                      f(-4) = -28

It will take him 5 days