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3 years ago

Can someone explain this to me pls

Mathematics

1 answer:

Alekssandra [29.7K]3 years ago

4 0

YOU ARE SMART YOU CAN DO THIS

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PLEASE HELP ME! Drag the expressions into the boxes to correctly complete the table.

Kamila [148]

The polynomials are:

$x^4+3x^3-5x^2-7x+20$

$x^3-2x^2+x-12$

$x^2+3x^5-6x+12x^3$

Not a polynomial are:

$4\sqrt[3]{x} -\sqrt{x} -20$

$\frac{5}{x^3}-\frac{1}{x^2}+\frac{8}{x}-40$

$x^{-3}-x^{-2}-6x^{-1}+8$

Solution:

Polynomial is an expression with variables and coefficients,

Which involves only the operations of addition, subtraction, multiplication, and non-negative integer exponents of variables

Option 1

$4\sqrt[3]{x} -\sqrt{x} -20$

Polynomial does not include roots

This is not a polynomial equation

Option 2

$x^4+3x^3-5x^2-7x+20$

This is polynomial expression involving addition and subtraction between terms with non-negative integer exponents of variables

Option 3

$\frac{5}{x^3}-\frac{1}{x^2}+\frac{8}{x}-40$

This is not a polynomial. This equations involves negative integer exponents of variables

Option 4

$x^3-2x^2+x-12$

This is a polynomial involving addition and subtraction between terms with non-negative integer exponents of variables

Option 5

$x^{-3}-x^{-2}-6x^{-1}+8$

This is not a polynomial. This equations involves negative integer exponents of variables

Option 6

$x^2+3x^5-6x+12x^3$

This is a polynomial involving addition and subtraction between terms with non-negative integer exponents of variables

5 0

3 years ago

The sum of three consecutive odd integers is 255.What are the integers? P.S Please don't answer just turn this word problem into

sasho [114]

Just give me a little bit of time please ok i will give u the answer ok i promise

7 0

3 years ago

2x+5=6-x could someone help me please?

Artist 52 [7]

Answer:

x=1/3

Step-by-step explanation:

Add x to both sides, 3x+5=6

Subtract five from both sides

3x=1

Divide both sides by 3

x=1/3

7 0

3 years ago

I am thinking of a number

valkas [14]

Answer:

1422

Step-by-step explanation:

calculated sooo yerp

7 0

2 years ago

Determine whether the function f(x)=x-3x^3 is even, odd, or neither.

vredina [299]

Answer:

Odd

Step-by-step explanation:

Looking at f(x)=x-3x^3, we see that all powers of x are odd: x^1 and x^3.

Thus, this function is ODD.

5 0

3 years ago