Question

what's the sum or difference
1. 4x^10-9x^10

2. 3y^5-10y^5

@kewlgeek555

Answer 1

There are two parts to every term... the numerical (coefficient)
\[\Large \color{red}{4}x^{10}\] or the one that is a 'pure number' and the literal (coefficient) or more commonly known as the 'variables part'
\[\Large 4\color{blue}{x^{10}}\]

Answer 2

Ok.

Answer 3

\[\Large 4\color{blue}{x^{10}}-9\color{blue}{x^{10}}\]
If two terms have EXACTLY the same literal coefficient, such as this pair, you may simply add/subtract their numerical coefficients, like so:
\[\Large = \color{red}{(4-9)\color{blue}{x^{10}}}\]\[\Large =\color{red}{-5\color{blue}{x^{10}}}\]

Answer 4

Thats it?

Answer 5

That said, I'm sure you can do #2 by yourself :)

Answer 6

That's it for #1.

Try 2.

Answer 7

-7^5

Answer 8

variables do not simply disappear :)

Answer 9

@Deivyneee sorry for being late. I had other questions to check. But it seems as if @terenzreignz has it under control. Very awesome responses that he/she give.

Answer 10

_7y^5 :)

Answer 11

@kewlgeek555 it's fine i still need your help

Answer 12

by _ I'm assuming you mean -
If that's the case, then you're right @Deivyneee ^_^

Answer 13

K. Tag me when needed - I am going to be on another subject @Deivyneee

Answer 14

Ok , & Thanks @terenzreignz

Answer 15

No problem :)
(It's TJ, by the way ^_^)

Answer 16

Ohk , msg me ! @terenzreignz