Question

Which shows the solutions of...

Answer 1

\[x ^{2}-8x=1? \]

Answer 2

\[A. 4 (+ or -) \sqrt{17}\]
\[B. 4 (+ or -) \sqrt{-15}\]
\[C. - 4 (+ or -) \sqrt{17}\]
\[D. - 4 (+ or -) \sqrt{15}\]

Answer 3

\[0=x^{2}-8(x)-1\]
a=1
b=-8
c=-1
\[x=-b(+or-)\sqrt{b^{2}-4(a)(c)}/2a\]
\[x=-({-8})(+or-)\sqrt{(-8)^{2}-4(1)(-1)})/2(1)\]
\[x=(8(+or-)\sqrt{64+4})/2\]
\[x=4(+or-)(\sqrt{68}/2)\]
\[x=4(+or-)\sqrt{17}\]
A) [\4(+or-)\sqrt{17}\]