Question

Given P (x)=x^2+2x-7, find P (-3)

Answer 1

P(-3) = -4

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

Explanation:

Step 1: Define

P(x) = x² + 2x - 7

P(-3) is x = -3

Step 2: Evaluate

1. Substitute: P(-3) = (-3)² + 2(-3) - 7
2. Exponents: P(-3) = 9 + 2(-3) - 7
3. Multiply: P(-3) = 9 - 6 - 7
4. Subtract: P(-3) = 3 - 7
5. Subtract: P(-3) = -4