According to the rational root theorem, the following are potential roots of f(x) = 6x4 + 5x3 - 33x2 – 12x + 20.
which is an actual root of f(x)?
a) -5/2
b) -2
c) 1
d) 10/3

a)

Step-by-step explanation:

We substitute in the function the values given in the options to confirm whether they are roots or not

a)

the function will be:

simplifying:

since the function when is equal to zero, this is an actual root of f(x).

3. (5x + 1) - (-10x + 6)

simplify the answer choice. combine like terms. remember to distribute the negative to the terms inside the second parenthesis. also remember that two negatives = one positive, and one of each sign = negative.

- (-10x + 6) = + 10x - 6

simplify. combine like terms:

5x + 1 + 10x - 6

5x + 10x + 1 - 6

15x - 5

∴ it is your answer

~

answer4 to the second power is 16

and 4 to the third power is 64,