Answer:
Step-by-step explanation:
I think it could be D
Sorry if not correct
Step-by-step explanation:
Decimal system, also called Hindu-Arabic number system or Arabic number system, in mathematics, positional numeral system employing 10 as the base and requiring 10 different numerals, the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9.
Use the elimination process
I believe that it is 2x^2+1x-2