Solve: 9x^2-49=0
A. -9/49, 9/49
B. -49/9, 49/9
C. -3/7, 3/7
D. -7/3, 7/3​

D. -7/3, 7/3

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right  

Equality Properties

Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of Equality

Algebra I

Multiple Roots

Step-by-step explanation:

Step 1: Define

9x² - 49 = 0

Step 2: Solve for x

[Addition Property of Equality] Isolate x term:                                              9x² = 49[Division Property of Equality] Isolate x term:                                              x² = 49/9[Equality Property] Isolate x:                                                                          x = ±7/3

Use a graph site then you will find your answer