ROSARIOANN40GO
Answered

Using the Square Root Property, which of the following are the roots of the quadratic equation x2 - 49? A. 5 and - 5 B. 6 and -6 C. 7 and - 7 D. 8 and - 8​

Sagot :

RAAFFYGO

Answer: C. 7 and -7

Solution:

[tex]x^2-49=0\\\\x^2=49\\\\\sqrt{x^2}=\sqrt{49}\\\\x=\frac{+}{}7[/tex]

Go Educations: Other Questions