Question

Solve pls for the function -2x²+x+1 find f(3)

Answer 1

Answer:

f(3) = -14

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

1. Brackets
2. Parenthesis
3. Exponents
4. Multiplication
5. Division
6. Addition
7. Subtraction

• Left to Right

Algebra I

• Function Notation

Step-by-step explanation:

Step 1: Define

f(x) = -2x² + x + 1

f(3) is x = 3

Step 2: Evaluate

1. Substitute:                    f(3) = -2(3)² + 3 + 1
2. Exponents:                   f(3) = -2(9) + 3 + 1
3. Multiply:                        f(3) = -18 + 3 + 1
4. Add:                              f(3) = -15 + 1
5. Add:                              f(3) = -14