Question

What are the exact solutions of x^2-5x-1=0 ?

Answer 1

you know about quadratic equation

Answer 2

Answer choices are
X= 5 + squrt 29 / 2
X= -5 + squrt 29 / 2
X= 5 + squrt 21 / 2
X= -5 + squrt 21 / 2

Answer 3

The plus signs are the weird one though that have the minus in the also u kno what I mean? Idk what they're called haha

Answer 4

\[\large{ax^2+bx+c=0}\] roots of the equation :
\[\large{x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}}\]

here a 1
b = -5 and c =-1

can u do that now?

Answer 5

solve this :
\[\large{\frac{5\pm \sqrt{5^2-4(1)(-1)}}{2(1)}}\]

Answer 6

5 + sqrt20/2

Answer 7

I got that so far