Arectangle has sides measuring (4x + 5) units and (3x + 10) units. part a: what is the expression that represents the area of the rectangle? show your work to receive full credit. (4 points) part b: what are the degree and classification of the expression obtained in part a? (3 points) part c: how does part a demonstrate the closure property for polynomials? (3 points)

A =

Step-by-step explanation:

b = 3x+10

h = 4x+5

A = bh

A = (3x+10)(4x+5)

A =

A =

It is a second degree equation, since the major exponent is 2.

In the multiplication of polynomials, it is necessary to consider their exponents, because these are added by passing the same variable, and they must always be integers.

12x2+55x+50

Explanation:

the area of a rectangle is: A=length . width

(4x+5)⋅(3x+10)

=12x2+40x+15x+50

=12x2+55x+50

Step-by-step explanation:

-14 is the answer

hope this : ))

it would be 6xy and -16xy.