Question

Identify all of the following solutions of...

Answer 1

Try filling all of them in and seeing whether they satisfy the equation.

Answer 2

You can do it algebraically, or you can plug in the numbers from the list.

Answer 3

Algebraically is better, but because you need to square the entire left side it might be cumbersome.

Answer 4

Correct, using 8 gives
\[\sqrt{0}+8 = 8\]
and using 9:
\[\sqrt{1}+8 = 9\]

Answer 5

alright, thanks :]

Answer 6

\[\sqrt{x-8}=x-8 \implies x-8=(x-8)^2\]
\[(x-8)^2-(x-8)=(x-8)(x-8-1)=0\]
8 and 9