What is the quotient when 2x cubed + x + 3 / x + 1

65 8 7 4 5 6 8 4 3 2 1 9 5 6 4 2 1 6 5 1 5 1 3 2 3 5 multiply the third number in the first row by the seventh number in the third row. add this result to the fifth number in the second row. add to this total ten times the fourth number in the third row. subtract the eighth number in the first row from the result.

X+ y = 5 ; x - y =3 solve using linear combination

What is always true about a positive integer raised to a negative odd power?