Answer:
D
Step-by-step explanation:
Which lengths would form a right triangle?
A.)9, 12, and 14
B.)24, 7, and 26
C.)21, 16, and 12
D.)30, 24, and 18
144
Factor x^3 -2x^2-9x+18
= x^2(x - 2) - 9(x - 2)
= (x^2 - 9)(x -2)
= (x + 3 )(x - 3)(x - 2)
So (x+3) is a factor
-3 meters