PLEASE HELP, I AM ABOUT TO CHEW MY ARM OFF OVER THIS!!!!!

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- anonymous

PLEASE HELP, I AM ABOUT TO CHEW MY ARM OFF OVER THIS!!!!!

- chestercat

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- anonymous

Rocky simplified an expression in three steps, as shown:

- anonymous

##### 1 Attachment

- anonymous

Which is the first incorrect step and why?
Step 1, all the exponents are increased by 2
Step 1, all the exponents are multiplied by 2
Step 2, the exponents in the denominator are added during multiplication
Step 3, the exponents of the same base are added during division

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## More answers

- nuttyliaczar

Keep in mind that anything with a negative exponent is just one over that term with a positive exponent. For example, x^-1 = 1/x

- nuttyliaczar

Does that help at all?

- anonymous

Ok, yes that helps ALOT, it's just that i have one more assignment after this one, and i am out of school, So i think i am just stressed out.

- anonymous

Of thinking if i will pass or not.

- nuttyliaczar

Well I'm here for any other questions you may have. I'm not saying I'm the best help but I will try my best

- anonymous

So can you help me eliminate real quick?

- nuttyliaczar

Yeah I'm here

- anonymous

I think we can rule out C

- nuttyliaczar

Yeah multiplying like terms with exponents just means you add their exponents together

- anonymous

We can eliminate A because, increasing means to add, and they are multiplying it by 2.

- anonymous

I think it's B

- anonymous

because they are doing that, in step1

- nuttyliaczar

Well consider what multiplying the exponents by two means. When you have any term to the 2nd power that just means you multiply it by itself. So if you look at just the numerator here, (x^-5)(y^2) times itself is basically just multiplying the exponents by two

- nuttyliaczar

Oh woops nvm

- nuttyliaczar

Stupid mistake, you are right

- nuttyliaczar

I misread the problem and thought there was only one mistake. Step 3 was a mistake also

- anonymous

THANK YOU SO MUCH!

- anonymous

You have been a really big help, i don't if i could have done it without you :)

- nuttyliaczar

Um actually second-guessing myself now >.>

- nuttyliaczar

You do just multiply by two

- nuttyliaczar

Sorry I'm super rusty, been out of school for too long

- nuttyliaczar

(x^-5)^2 = x^-10

- anonymous

It's gotta be B because none of the other answer choices are happening in that problem.

- nuttyliaczar

But B is correct. During step 2 x^6 * x^6 gives us x^12, and that's just (x^6)^2

- nuttyliaczar

Btw it could be A, since idk what "increased by 2" means

- nuttyliaczar

Eh I still think it's D, because he shouldn't be adding those exponents during division

- nuttyliaczar

You always subtract for division

- anonymous

increasing
having the property that for any two points in the domain such that one is larger than the other, the image of the larger point is greater than or equal to the image of the smaller point; nondecreasing.

- nuttyliaczar

Sorry for all the confusion, I'm sure of this now

- anonymous

LOL just looked it up, because idk what it meant either

- nuttyliaczar

Because look at what he does. He adds 12 to -10 for the x term

- nuttyliaczar

But if he rewrote x^-10 as 1/x^10 he wouldn't have gotten the same

- anonymous

OH yeah, in division you subtract the exponets, rather than adding them,
YOUR RIGHT D IS THE ANSWER

- nuttyliaczar

Sorry again ^^'

- anonymous

It's ok, i think i have confused myself, it's not your fault.

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