The length of a rectangle is (5x^2 + 4x - 4) units, and it’s width is (4x^3 - 2x + 6) units.

Part A: what is the area of the rectangle? Show your work.

Part B: is the answer for part A an example of polynomials being closed under an operation? Justify your answer.

Part C: what is the degree and classification of the expression obtained in part A?

yes

step-by-step explanation:

the answer would be d.

step-by-step explanation:

move all variables to the left side and all constants to the right side

(x−3)^2+(y−1)^2=16

this is the form of a circle. use this form to determine the center and radius of the circle.

( x − h ) 2 + ( y − k ) 2 = r 2

match the values in this circle to those of the standard form. the variable   r   represents the radius of the circle,   h   represents the x-offset from the origin, and   k   represents the y-offset from origin.

r = 4

h = 3

k = 1

the center of the circle is found at   ( h , k ) .

center:   ( 3 , 1 )

these values represent the important values for graphing and analyzing a circle.

center:   ( 3 , 1 ).

radius:   4

i honestly dont know