Question

Question 1 of 10

Which of the following is equal to the rational expression when x#5?
x² - 25
X-5
A. x + 5
B. X-5
1
C
x+5
O D. X+5
X-5
SUBMIT

Answer 1

A. x + 5

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
• Factoring

Explanation:

Step 1: Define

Identify

`\displaystyle (x^2 - 25)/(x - 5)`

Step 2: Simplify

1. Factor:
   `\displaystyle ((x - 5)(x + 5))/(x - 5)`
2. Divide:
   `\displaystyle x + 5`