Question

simplify each expression. use positive exponents. (x–2y–4x3) –2

Answer 1

is the 4x3 4 times 3

Answer 2

yea it is

Answer 3

-2x+4y+24

Answer 4

wait so 48*3?

Answer 5

?

Answer 6

you cant combine unlike terms

Answer 7

im lost

Answer 8

wait im coming

Answer 9

(x−2y−4x3)−2

Whenever you have a negative exponent, you can write it as the reciprocal of the base. This is usually stated this way:
a−n=1an

We can use this to write
(x−2y−4x3)−2=1(x−2y−4x3)2

hope i helped

Answer 10

y8x2 is ur answer

Answer 11

(x1y−4)−2=x−2y8

No negative exponents, so we use the property from my first response at the very beginning.
x−2=1x2

This gives us
x−2y8=y8x2

So your answer is
y8x2

Answer 12

Let's go back to your problem for a moment.
(x−2y−4x3)−2
Ignore the fact that there are negative exponents, and ignore the fact that there is a "y" in there. See those two "x" parts? Try combining those together. Simplify
x−2x3

Answer 13

x-5


Ah, when you add -2 and 3, you get 1. That will give you x^1

Answer 14

are u here

Answer 15

Okay. Now we have
(x1y−4)−2

Let me say a couple things about this.

First, these problems are going to be easier if you write the exponents that usually aren't written in there. For example, rewrite x as "x^1" like I did.

Second, you can't combine an x and a y. For example, what I'm about to do is WRONG:
x1y−4=xy−3
It just simply doesn't work like that. You can ONLY combine them if they have the same BASE.

Answer 16

Now, let's talk about raising a term to a power. Let's say we have (a^3)^4:
(a3)4=a3a3a3a3
Now each of these has the same base, so we can ADD the exponents.
(a3)4=a3+3+3+3=a12

New Rule: If we raise a power to a power, we MULTIPLY the exponents.
Examples:
(a5)4=a20
(g9)10=g90
(z−2)−2=z4

Also, notice the difference between these two:
a4a5=a9
(a4)5=a20

Answer 17

so ur anser is y8x2

Answer 18

ur welcome