State the possible number of positive and negative roots for the equation x^6 - x^4 - x^2 + 1 - 0

A) Possible # positive real roots: 3 or 1
Possible #negative real roots: 2 or 0

B) Possible #positive real roots: 4
Possible # negative real roots: 2 or 0

C) Possible #positive real roots: 2 or 0
Possible #negative real roots: 2 or 0

D) Possible # positive real roots: 4,2, or 0
Possible #negative real roots: 2

38 was the other number of your question.

2 equivalent expressions to represent the area of a rectangle and the top is n-3 and the side is 2

area of the rectangle = length * width

given length = n - 3

width = 2

replace it in the area

so area of the rectangle = (n-3) *2

= 2(n-3)

one of the expression is 2(n-3)

to get another expression we distribute 2 inside the parenthesis

2(n-3) is 2n - 6

so another expression is 2n - 6

two equivalent expression are

2(n - 3)   , 2n - 6