Answer:
The angles remain the same for all values of n. After a dilation, the angle measurements for the image and the preimage are always equal.
Step-by-step explanation:
Do you have the rest of the question?
Im assuming you mean 2x^2-3x-9=0 ?
If so, you have to factorise the equation
(2x-3) (x+3) = 0
2x - 3 = 0
2x = 3
x = 1.5
x + 3 = 0
x = -3
x is either 1.5 or -3