Which polynomial is equivalent to (x^2-6x^4+4x^3-2x)+(4x-5x^2+4x^3-6x ^4)
a. -4x^2+2x
b. -x^4+8x^3-4x^3-2x
c. -x^3-2x^2-2x
d. -12x^4+8x^3-4x^+2x
e. -12x^4-x^3-2x^2-6x

D

Step-by-step explanation:

We simply simplify and add the like terms in the problem given:

Here, we added the x^4 terms, the x^3 terms, the x^2 terms, and the x terms to arrive at our answer.

Looking at the choices, D matches ours, so D is the correct answer.

correct

step-by-step explanation:

first, we define the variables:

x: number of years after 1950

f (x): amount of vinyl sold.

then, with the variables defined, we have:

68594 vinyl records were sold in 1958 > f (8) = 68594

91299 vinyl records were sold in 1961 > f (11) = 91299

38720 vinyl records were sold in 1952 > f (2) = 38720

161743 vinyl records were sold in 1967 > f (17) = 161743

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step-by-step explanation: