Question

domain of 2x^2-3x-9 domain of 2x^2-3x-9 @Mathematics

Answer 1

all real numbers

Answer 2

like?

Answer 3

solve it out 1st? pls

Answer 4

The domain of any polynomial is the set of all real numbers (since you can plug in any real number for x and get a result). There's not much more to it than that.

Answer 5

\[\mathbb{R}\]

Answer 6

all real numbers, anything u plug into x will give u a real number

Answer 7

is it the same as -infinity to infinity?

Answer 8

yes, this is representing the answer in interval notation.

Answer 9

yup

Answer 10

x_1,_2=(3+/- sqrt(9+72))/4 =(3+/- 9)/4 = -6/4 = -3/2 and 3
- so those are zeros of this functions