Expand it
-(x+3)^2-1
-(x+3)(x+3)-1
-1(x^2+3x+3x+9)-1
-1(x^2+6x+9)-1
-x^2-9x-9-1
-x^2-9x-10
f(x)=-x^2-9x-10
Answer:A
Step-by-step explanation:1 cup is equal to 8 fluid ounces so 48/8=6 and since he needs to drink 8 cups of water the answer is 2 more.
Hello again
Answer: 1 1\3
~hope i help~
Answer: 
Step-by-step explanation:
8 x 14 x 21 = 2352, so:
√8⋅√14⋅√21 = √2352
√2352 in simplest form is 28√3
I hope this helps!