Respuesta :

Answer:

b = (1/2) or, b = -(1/2)

Step-by-step explanation:

Here, the given equation is [tex]64 \times b^{2}  = 16[/tex]

or, by transposing 64 on the other side, we get[tex]b^{2}  = \frac{16}{64}  

= \frac{1}{4}[/tex]

Now, taking root both the sides, we get

[tex]b = \sqrt{\frac{1}{4} }[/tex]

⇒[tex]b = +(\frac{1}{2})  \\b = -(\frac{1}{2})[/tex]

Both values of b are possible here.