Question

x^2-10x+8

Answer 1

I cant figure out what adds to be 8 and mult to be 10

Answer 2

\(\normalsize \color{black}{ \bf x^2-10x+8. }\)

I don't think you can factor this, b/c 10 and 1, or 2 and 5 do not work.

Answer 3

\(\normalsize \color{black}{ \bf (-10)^{2}-4(1)(8) }\)

\(\normalsize \color{black}{ \bf 100-32 }\)

\(\normalsize \color{black}{ \bf 68 }\)

also, the discriminant is NOT a perfect square.