write a quadratic equation with the given roots: 9-√11 and 9+√11

Question

***[isuru]*** · Answer

if u got a quadratic equation with root p , q u can write it as
          ( x - p)( x -q) and expand it..
in the same way u can write
          $$[x - ( 9 -\sqrt{11} ) ] [ x -(9 + \sqrt{11} ) ]$$
as the quadratic equation u want and expand ...........

can u expand this ?

anonymous · Answer

i keep getting the wrong answer x^2-18x-92 and x^2-18x+70

anonymous · Answer

come back!!!!

***[isuru]*** · Answer

u cant get 2 expression.. u have to write a single quadratic expression with the given roots.. and u can get it by expanding the above expression.. can u expand it ?

anonymous · Answer

i know ive been getting single expressions but i cant get the right one
can you give me the right answer? it might be my math that im doing wrong

anonymous · Answer

wait ive got it!!!!
i was doing the math wrong. poitive 81 lol

anonymous · Answer

but since you are here can you help me with one that has the i's?

***[isuru]*** · Answer

srry... i  dont know much about complex numbers...

anonymous · Answer

1+√11i and 1-√11i

anonymous · Answer

oh ok thank you though

anonymous · Answer

$i=\sqrt{-1}$