Put in descending power order & identify coefficient.

1. 2x^5 - 12 +3x

2. 2a+4a^3-5a^2-1

Question

Put in descending power order & identify coefficient. 

1. 2x^5 - 12 +3x

2. 2a+4a^3-5a^2-1

anonymous · Answer

1. 2x^5 + 3x - 12; coefficients: 2, 3, -12
2. 4a^3 - 5a^2 + 2a - 1; coefficients: 4, -5, 2, -1

anonymous · Answer

please explain what is a coefficient and what is descending order.

anonymous · Answer

are u still there?

anonymous · Answer

coefficients are the numbers.
descending order is the order going from highest to lowest.

anonymous · Answer

ok I guess that is what confused me about the negative #.  I thought it would be a different order

anonymous · Answer

wouldnt the negative # be last?

anonymous · Answer

example.  -4d^4+1-d^2 .... Would it be .... -4d^4-d^2+1 ?????  coefficients being 4,1

anonymous · Answer

the order would be:
$$-4d ^{4}-d ^{2}+1$$
but your coefficients are incorrect. What are the numbers that are given to you? 
remember if, for example, $$-5x ^{3}-x+2$$ the coefficients would be -5, -1 and 2. It is important to remember that if there is a variable x or d or any letter (being a variable) there is an imaginary 1. like in the problem i gave the -x, its coefficient (#) is -1.

anonymous · Answer

I understand now thank you so much for your help

anonymous · Answer

you are most welcome :)