What two numbers add to 9 and multiply to negative 11

Question

asked Jul 23, 2017 213k views

1 Answer

Takeshin · Answer 1 · 2017-07-27T01:09:46+0000

The two numbers are (9+ 5√5)/2 and (9- 5√5)/2.

(9+ 5√5)/2+ (9- 5√5)/2= 9
(9+ 5√5)/2* (9- 5√5)/2= -11

Hope this helps~