Question

checking answers on polyonimals

Answer 1

@Michele_Laino

Answer 2

in a polynomial of \(n-\)th degree there are \(n+1\) constants or coefficients

Answer 3

I think it is correct!

Answer 4

so which one was wrong?

Answer 5

for first question about the perimeter, I need to know the text
whereas for second question, I think you are right

Answer 6

was it about name thr polynomials?

Answer 7

a \(3-\)degree polynomial, can be called trinomial of third degree

Answer 8

it can also be called cubcic function, or cubic polynomial

Answer 9

http://prntscr.com/92eqtv

Answer 10

can you see that?

Answer 11

yes! Please wait, I'm computing the requested perimeter...

Answer 12

OK

Answer 13

here is my result for perimeter:
\[\Large 20{x^5} + 56{x^4} + 26{x^3} + 26{x^2} + 64x + 16\]

Answer 14

could you show your work so i can get it

Answer 15

so was my answer wrong because i got 20x^5+4x^4-2x^3-4x^2?

Answer 16

here is my computation:
\[\begin{gathered}
p = 2\left( {6{x^2}} \right) + 4\left( {2{x^5} + 4{x^4} + 4{x^3} + {x^2} + 5x} \right) + 4\left( {4x} \right) + \hfill \\
+ 2\left( {3{x^4} - 2} \right) \hfill \\
+ 2\left( {4{x^4} + 3{x^3} + {x^2} + 4x} \right) \hfill \\
+ 4\left( {3{x^5} + 5{x^4} + {x^3} + 2{x^2} + x + 6} \right) + 4\left( {4x} \right) + \hfill \\
+ 2\left( {3{x^4} - 2} \right) \hfill \\
\end{gathered} \]

Answer 17

ok thanxs what about my other answers?

Answer 18

please wait a moment I'm working on your question...

Answer 19

I got this:
\[\begin{gathered}
difference = 2\left( {3{x^5} + 2x + 3{x^4} - 2{x^2}} \right) - \hfill \\
- 2\left( {2{x^5} + 3x + {x^4} + {x^3} - x} \right) = \hfill \\
= 2{x^5} + 4{x^4} - 2{x^3} - 4{x^2} \hfill \\
\end{gathered} \]

Answer 20

for which one?

Answer 21

2-nd question of "Mega Mansion Problem"

Answer 22

ok what about the last one?

Answer 23

here is the right formula:
\[Volume = \left( {3{x^5} + 2x} \right)\left( {3{x^4} - 2{x^2}} \right)4x = ...?\]
please continue

Answer 24

okay so was i right?

Answer 25

I'm sorry, your answer is wrong

Answer 26

okay so yours is right the one above?

Answer 27

yes! please continue, it is the first step

Answer 28

hint:
here is the next step:
\[\begin{gathered}
Volume = \left( {3{x^5} + 2x} \right)\left( {3{x^4} - 2{x^2}} \right)4x = ...? \hfill \\
= \left( {3{x^5} + 2x} \right)\left( {12{x^5} - 8{x^3}} \right) = ...? \hfill \\
\end{gathered} \]

Answer 29

you want me to finish it @Michele_Laino

Answer 30

here is my result:
\[\begin{gathered}
Volume = \left( {3{x^5} + 2x} \right)\left( {3{x^4} - 2{x^2}} \right)4x = ...? \hfill \\
= \left( {3{x^5} + 2x} \right)\left( {12{x^5} - 8{x^3}} \right) = ...? \hfill \\
= 36{x^{10}} - 24{x^8} + 24{x^6} - 16{x^4} \hfill \\
\end{gathered} \]

Answer 31

(6x^5)(4x^2)

Answer 32

you have to apply the "foil" method to this step:
\[\left( {3{x^5} + 2x} \right)\left( {12{x^5} - 8{x^3}} \right) = ...?\]

Answer 33

or the distributive property of multiplication over addition

Answer 34

36x^10-24x^8 +24x^6-16x^4

Answer 35

correct!

Answer 36

foreal?!! thanxs is that the answer though??