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4. What is the most convenient method to solve the quadratic equation 9x2 - 49 = 0?
A. Completing the Square
C. Factoring
B. Extracting Square Roots
D. Quadratic Formula​


Sagot :

Answer to the question:

B.) Extracting $quare Roots

Step-by-step explanation:

Take the square root of both sides of the equation to eliminate the exponent on the left side.

x

=

±

49

9

The complete solution is the result of both the positive and negative portions of the solution.

Tap for more steps...

x

=

7

3

,

7

3

The result can be shown in multiple forms.