±11
Step-by-step explanation:
Even NO. roots are always contain ±.
Answer and Step-by-step explanation:

This value above is ONE term. Even though it is made up of more values and stuff, it is all one term BECAUSE they are all connect, so the -3 is with the y by multiplication, and the 9 is with -3y as an exponent of y.
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Answer:

Step-by-step explanation:
First we move the constant to the right and change its sign
we add the numbers and divide it by 3
and you get 8
Answer:
Step-by-step explanation:
That is a factorial, which is calculated by multiplying 8 * 7 * 6 * 5 * 4 * 3 * 2 * 1 (which is a really BIG number!) 40,320 to be exact!