Question

Easy Medal

Answer 1

Add and simplify.

(2x - y - 2z - 6) + (-6x + 4y + 3z + 8)

A. -4x + 3y + z + 2


B. 4x - 3y - z + 2


C. -4x + 3y - z - 2


D. 4x - 3y + z + 2

Answer 2

I have no idea, which is why i asked the question in the first place.

Answer 3

Do you know how to add and simplify polynomials?

Answer 4

Doubt it.

Answer 5

-4x+3y+z+2

Answer 6

No direct answers please.

Answer 7

So its A

Just add all like terms together. Its like grouping.

Wold you like me to explain further?

Answer 8

https://www.khanacademy.org/math/algebra-basics/quadratics-polynomials-topic/polynomial-basics-core-algebra/v/adding-and-subtracting-polynomials-1

Answer 9

^that should help

Answer 10

the answer is A.

Answer 11

http://www.wolframalpha.com/widgets/view.jsp?id=805bc85ccf266c717d7bb2eedf27f027

Answer 12

You don't know that. Someone gave a direct answer. That doesn't mean it's correct.

Answer 13

Wolfram Alpha is a math-based tool, and it's not just for math either.

Answer 14

Start with original question:
(2x - y - 2z - 6) + (-6x + 4y + 3z + 8)

Now group: All numbers with x go together, all numbers with y go together, all numbers with z go together, and the other two numbers with no letters go together.

Lets start with numbers with x:
2x-6x= -4x

Now with numbers with y:
-y+4y= +3y

Now numbers with z:
-2z+3z= +z

Now the numbers without letters:
-6+8= +2


Now combine the answers and you get
-4x+3y+z+2
Which is choice A

Answer 15

do you have to make an account?

Answer 16

@KatnissEverdeen12 No

Answer 17

gave you a medal Andrew :) good work

Answer 18

Thank you Katniss

Answer 19

@BrownieCat Did that help you?

Answer 20

I already got the answer by myself. No one gets the medal.