Question

Determine whether each expression is a polynomial. If it is a polynomial, state the degree of the polynomial.

3x3 - 4x2

Answer 1

@n14r96

Answer 2

yes it's a polynomial
degree: 3

Answer 3

how

Answer 4

A polynomial is an expression of more than two algebraic terms.

Answer 5

the degree is just the higher degree in this case you have 2 and 3 the highest is 3 so that's ur degree

Answer 6

\[\large \large 3x^3 - 4x^2\] The highest exponent power is 3. Therefore, the degree of this polynomial is three.
I hope this help! :)

Answer 7

oooooooooooo can u help me with this one
Determine whether each expression is a polynomial. If it is a polynomial, state the degree of the polynomial.4x - 5x4 + 3x3 -x5

Answer 8

I think it is a polynomial and the degree would be 5

Answer 9

By the way, when you're going to write an exponent, write "x^4" or "x^3" (To veright that next to the ^ is an exponent)

It is a polynomial because it has 4 terms, and the definition of a polynomial is "An expression of more than two algebraic terms."

Remember what we said before? The highest exponent power is ___
Therefore, that will be the degree of the polynomial.
I hope this help! :)

Answer 10

what about this
Simply and then match your answer with the correct choice.
(4x + 5y) - (3x+8y)
(4x + 5y) + (3x+8y)
(4x + 5y) + 3(x+8y)
(4x + 5y)(3x+8y)

Answer 11

I'll help you with the first one.
(4x + 5y) - (3x+8y)
What is another way of writing it, without the parenthesis?

Answer 12

i think x+3y

Answer 13

Answer my question first. :)
What is another way of writing it?

Answer 14

i think 4x+5y-3x+8y

Answer 15

Nope. You're subtracting (4x + 5y) from - (3x+8y).
When you're subtracting it by a polynomial, you change the operation sign to it's opposite.
So the opposite of addition is subtraction.
The opposite of subtraction is addition.
The opposite of multiplication is division and so on...
So (4x+5y) stays the same, but - (3x+8y) change.
What does - (3x+8y) change to?

Answer 16

it changes to (4x+5y)-(3x-8y) i think

Answer 17

You're partly correct. Take out the parenthesis, and that would be correct.
So you have 4x+5y-3x-8y. Now, we must combine like term. What can we combine?

Answer 18

4x and -3x then 5y and -8y

Answer 19

x-3y

Answer 20

Correct. :)

Answer 21

what about the next one

Answer 22

I'm guessing you know how to do the rest. Tell me the answer for the 2nd one, and I'll check if it's correct or wrong. If it's wrong, I'll explain it to you. :)

Answer 23

ok

Answer 24

i think 7x + 13y

Answer 25

That is correct. What about the other polynomial? What does that simplify to?

Answer 26

ummm 7x+29y i think??????

Answer 27

Correct. :)
You're doing very good.

Answer 28

the last one i need help with

Answer 29

i know we have to the box method]

Answer 30

(4x + 5y)(3x+8y)

What do you think you do first?