Question

Plz Help Select the correct answer. What are the solutions to this equation? 16x2 + 9 = 25 A. x = -4 and x = 4 B. x = 0 and x = 4 C. x = 0 and x = 1 D. x = -1 and x = 1

Answer 1

Answer:

D

Step-by-step explanation:

assuming you are asking for the solutions to 16*$x^{2}$ + 9 = 25

The goal here is to isolate X

1. subtract 9 from both sides

16*$x^{2}$ = 16

2. divide both sides by 16

$x^{2}$ = 1

3. take the square root of both sides

$\sqrt{x^{2} }$ = $\sqrt{1}$

since the square root can be negative or positive

the answer is D X=1 or X=-1