Yes I think that is what you do but others can elaborate more im sure
Answer:
2x^4 + x^3 - 2x -1
Step-by-step explanation:
Do each one at a time and add them after you are done is necessary, first multiply 2x times x^3 this gives 2x^4. Then multiply 1 times x^3 to get x^3. Then multiply 2x times -1 to get -2x. Then multiply -1 and +1 to get -1. Then combine them together. None of the terms are like terms so you don't need to worry about combining them further but keep that in mind for other problems. The final answer becomes 2x^4 + X^3 - 2x -1 because none of the terms are the same power.
Answer:
C
Step-by-step explanation:
Answer
a. The volume is multiplied by 4
b. The volume is doubled
Explanation
a. The volume of a cone with radius r and height h is 
. If the radius is doubled, the new volume will be 
, which is equal to 
. This means that the volume is multiplied by 4.
b. The volume of a cone with radius r and height h is . If the height is doubled, the new volume will be 
, which is equal to 
. This means that the volume is multiplied by 2.
