Question

If x is a positive integer then 2(x)3 =

Answer 1

8x
8x^3
6x^3
2x^3
6x

Answer 2

I'm not sure I get your question... is x cubed or multiplied by three?

Answer 3

cubed

Answer 4

x= variable

Answer 5

What are you trying to do? Is the whole thing cubed?\[(2x)^{3}\]

Answer 6

If that is the case, then you need to raise everything inside parentheses to the third power, that is, both the two and x. Do you understand?

Answer 7

i think

Answer 8

ya all of it is cubed

Answer 9

So what do the think the answer is?

Answer 10

6x

Answer 11

Let me show you:\[(2x)^{3}\]\[= 2^{3}*x ^{3}=2*2*2*x*x*x\]What do you think the answer is now?

Answer 12

um.............

Answer 13

8x?

Answer 14

Almost. Remember that x is also cubed, so you need the exponent on x.

Answer 15

Oh so just 8?

Answer 16

No, remember that you're multiplying 2 cubed, or 8, by x cubed, so you need to include x cubed.

Answer 17

oh..srry blonde moment so mean this.........8x^3

Answer 18

?

Answer 19

Yep

Answer 20

Horray!.......Thanks for baring with my mathematically challenged brain xD

Answer 21

Medal for you! lol

Answer 22

Glad to help

Answer 23

.......That's what they all say XD

Answer 24

I love math....

Answer 25

I wish I could say the same XD

Answer 26

Maybe you'll like calculus better?

Answer 27

It's really different

Answer 28

Really? What does it entail? I heard its a hard class..... :/

Answer 29

Well I don't know how it is in your neck of the woods, but over here it's just slope and area. You start by studying limits (which sound pretty cool, but are actually pretty simple most of the time) and then you learn how to find instaneous slope, which is a lot like the slope formula in algebra, except that limits are applied. Then you learn how to find areas using antiderivatives. I think it's fun. You need to keep track of the formulas, though.