Question

For this one...

Answer 1

\[\sqrt {4b}=2\]
\[2 \sqrt{b}=2\]
Do I then divide by the 2 on both sides?

Answer 2

yes

Answer 3

\[\sqrt {b} = 1\]
\[\sqrt {b}^{2} = 1^{2}\]
\[b = 1\]