Question

How many solutions are there for the equation? x^2 + 16 = 8x

Answer 1

just one

Answer 2

\[x^2-8x+16=0\]
\[(x-4)^2=0\]
\[x=4\]

Answer 3

what do you do after you get x=4 though

Answer 4

two answers... 4,4 .

Answer 5

you draw it
\[f(x)=x^2-8x+16=(x-4)^2\]