Question

Question 7

Which of the following represents eighth root of x cubed in exponential form?

x to the 8 thirds power

x to the 3 eighths power

3x8

8x3

Question 8

Simplify (12 − 6i) − (−3 − 8i)

15 + 2i

15 − 14i

13

17

Question 9

Given the functions j(x) = x2 - 9 and k(x) = -x + 7, which operation results in a 3rd degree polynomial?

Addition

Subtraction

Multiplication

No operations

Answer 1

@math&ing001 lol

Answer 2

\[\sqrt[8]{x ^{3}}=x ^{\frac{ 3 }{ 8 }}\]
There are some few simple rules about exponential you should know about:
\[x ^{-a}=\frac{ 1 }{ x ^{a} }\] \[\sqrt[a]{x}=x^{1/a}\]

Answer 3

8?

Answer 4

You want me to guide you through ?

Answer 5

yes please

Answer 6

& was the last ones answer x^3/8 or x^8/3 ?

Answer 7

Use the second rule to find out ;)

Answer 8

ok! so its 3/8 ? am i righttttt?

Answer 9

Yep !

Answer 10

8?

Answer 11

For 8, first distribute (aka remove all brackets) then regroup terms alike

Answer 12

ok! then ?

Answer 13

Then add those terms to each other.

Answer 14

ok so is it 15+2i ?

Answer 15

Yeah ! You're a fast learner :D

Answer 16

lol! 9?

Answer 17

J is second degree and k is first degree, you'll need to multiply them to get a higher degree.

Answer 18

im confused..

Answer 19

You what the degree of a polynomial is ?

Answer 20

no.

Answer 21

Suppose \[P(x) = x ^{6} + 5x ^{4} -10x ^{7} + 2x + 1\] Its degrree would be the highest power of all terms of the polynomial which is 7.

Answer 22

can you just work this problem out for me? lol

Answer 23

It's against the Code of Conduct to just show answers http://openstudy.com/code-of-conduct

Answer 24

i mean i want you to show me how to work it out then show me the correct answer?

Answer 25

would it be addition?

Answer 26

Well, as I said before, you need to multiply j(x) and k(x) to get a 3rd degree polynomial, and that's basically the answer lol