## anonymous 4 years ago How many solutions are there for the equation? x2 + 16 = 8x A. 2 B. 1 C. 0

1. anonymous

1

2. anonymous

is that x^2? as in x squared?

3. anonymous

or 2x

4. anonymous

x squared

5. anonymous

therefore, you have two solutions, answer is A

6. anonymous

Generally, all quadratics x^2 have two root. Remember the $\pm$ when you do find the roots.

7. Directrix

There are two roots 4 and 4 but 4 is considered a "double root." You have 2 roots but only one distinct root.