Answer:
the answer is B. 1,722.22
Alternate exterior
Step-by-step explanation:
They are on opposite sides and both exterior
3x²–243=0 —> 3 (x²–81) = 0 —>
x²–81=0 —> (x-9)(x+9)=0
x-9=0 —> x=9
x+9=0 —> x=–9
I hope I helped you^_^
