Select the correct answer. A mistake was made in the steps shown to simplify the expression. Which step includes the mistake?
9/2 + 3(4 – 1) – 7 + 23
Step 1: = 9/2 + 3(3) – 7 + 2^3
Step 2: = 9/2 + 3(3) — 7 + 8
Step 3: = 15/2(3) – 7 + 8
Step 4: = 45/2 - 7 + 8
Step 5: = 31/2 + 8
Step 6: =47/2
A. Step 1
B. Step 4
C. Step 5
D. Step 3

50.6

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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