Answer:
D
Step-by-step explanation:
assuming you are asking for the solutions to 16*[tex]x^{2}[/tex] + 9 = 25
The goal here is to isolate X
1. subtract 9 from both sides
16*[tex]x^{2}[/tex] = 16
2. divide both sides by 16
[tex]x^{2}[/tex] = 1
3. take the square root of both sides
[tex]\sqrt{x^{2} }[/tex] = [tex]\sqrt{1}[/tex]
since the square root can be negative or positive
the answer is D X=1 or X=-1
