Question

9x^2-11x-10

Answer 1

x = x = 1/18 (11 +- sqrt(481))

Answer 2

Ok I have this myininaya method of solving this would you like to know

Answer 3

(1.83,-0.61)

Answer 4

Since is not an integer number (it is a so called irrational number, not reducible to fractions like m/n), further reduction of this expression will not give you an integer result.