Question

Solve. x2 = 10x – 20

Answer 1

Did you mean this?
\[x^2 = 10x - 20\]
\[x^2 -10x + 20 = 0\]
\[x^2 -10x + 25 = 5\]
\[ (x-5)(x-5) = 5 \]
\[ (x-5)^2 = 5 \]
\[ (x-5) = sqrt{5} \]
Get this:
\[x = 5 \pm \sqrt{5}\]

Answer 2

Yeah, thank you (: