Respuesta :
Answer:
I wanted to simplify since u didn't specify what u wanted: -x^3 + 6x^2 -1
Step-by-step explanation:
I assume this is what you typed: (3x^2 - 1) + (3x^2 - x^3)
-x^3 + 6x^2 -1
Answer:
-x³+6x²-1
Step-by-step explanation: Hope it helps