Arectangle has sides measuring (2x + 7) units and (5x + 9) 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)

i believe the answer is letter c) 8

step-by-step explanation:

5 pm

step-by-step explanation:

answer: b. f(x) = (x + 2)^3 (x^2 - 7x + 3)^4

step-by-step explanation:

polynomials always have as many roots as their order. this is a 4th order polynomial- hence 4 roots!

complex roots of polynomials always come in pairs. the quadratic equation has the "+/-" in that will alwaysgenerate m+ni amd m-ni, so 7-2i must be a root of this polynomial equation.

the order of the numerator and denominator are both 2. so the horizontal asymptote is y=a2/b2 =7

verticle asymptotes are the forbidden x-values. f(x) becomes undefined at x=-3 because this value will cause a zero denominator.

a graph of r(x) will have vertical asymptotes at ±1 because these values will make the denominator zero. so the domain of the function cannot include ±1.

you 're wlecome! : )

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