Answer:
Step-by-step explanation:
ABCD is a rhombus. AC and BD are its diagonals intersecting at point E.
Diagonals of a rhombus bisects at right angles.
(Alternate angles)
1+2=3
I think ur is D but I'm not sure
I think it is (x^2+9) x (x-1) x (x+1)
(not sure if right but had a go)