Question

Simplify the expression: 7s2+9+–2s2

Answer 1

Answer:

5s² + 9

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

• Terms/Coefficients/Degrees

Step-by-step explanation:

Step 1: Define

7s² + 9 + -2s²

Step 2: Simplify

1. Rewrite:                               7s² + 9 - 2s²
2. Combine like terms (s²):     5s² + 9