Respuesta :

Answer:

- x² + 3x - 9

Step-by-step explanation:

standard form of a polynomial of degree 2 is

ax² + bx + c ( a ≠ 0 )

Given

- 9 + 3x - x²

= - x² + 3x - 9 ← in standard form

chrisrainey

ANSWER:}---> -x²+3x-9