Help with exponenets?

[Beleated_Media]

I cannot seem to get the hand of simplifying exponents.
*Note ()=An exponent
Such as:
x(2)x(4)j(-7)

Can anyone help me find a way to simplify?
(Whats akward is I'm in honors... .-.)

 

[RayOfHope]

Isn't it, x^8 j^-7?

^ is the symbol for exponents btw.

So, for x^2 x x^4, you would times the exponents in this situation, which is x^8.

 

[Beleated_Media]

I've been looking up some concepts in math books and online, I need to find a way to simplify exponenets

 

[Axujsho]

Isn't it, x^8 j^-7?

^ is the symbol for exponents btw.

So, for x^2 x x^4, you would times the exponents in this situation, which is x^8.

I'm pretty sure it'd be x(6), j(-7). When you have exponents that are on the same letter, you would add or subtract them, yes? Not multiply or divide. Correct me if I'm wrong.

Exponents have a few rules that we can use for simplifying expressions.

• Simplify (x[SUP]3[/SUP])(x[SUP]4[/SUP]) Copyright ? Elizabeth Stapel 2000-2011 All Rights Reserved

• To simplify this, I can think in terms of what those exponents mean. "To the third" means "multiplying three copies" and "to the fourth" means "multiplying four copies". Using this fact, I can "expand" the two factors, and then work backwards to the simplified form:
  
  • (x[SUP]3[/SUP])(x[SUP]4[/SUP]) = (xxx)(xxxx)
    = xxxxxxx
    = x[SUP]7[/SUP]

Note that x[SUP]7[/SUP] also equals x[SUP](3+4)[/SUP]. This demonstrates the first basic exponent rule: Whenever you multiply two terms with the same base, you can add the exponents:

• • ( x[SUP] m[/SUP] ) ( x[SUP] n[/SUP] ) = x[SUP]( m + n )
    [/SUP]​
    [SUP]
    Taken from: [/SUP]
    http://www.purplemath.com/modules/exponent.htm

 

[ZeldaSylveon]

Isn't it, x^8 j^-7?

^ is the symbol for exponents btw.

So, for x^2 x x^4, you would times the exponents in this situation, which is x^8.

wouldnt you add them?

 

[RayOfHope]

I promise it's easy, there are just a few rules to follow. Surely you've found tutorials online that will help?

 

[Radda]

You add them together + the variable I think

Like j?(j⁴)= J⁸

 

[Beleated_Media]

I just thought of a random example I need help with simplifying (spelling I KNOW) exponent number sentences, that use eitheir multiplication or divison

 

[RayOfHope]

In this situation, for x^2 x x^4, I don't believe you combine like terms because they're being multiplied. If it's beside eachother with no symbol in between, like x^6y^8, x to the power of 6 and y to the power of 8 are being multiplied.

I...hope my attempt at an explanation isn't confusing things further.

 

[Beleated_Media]

I promise it's easy, there are just a few rules to follow. Surely you've found tutorials online that will help?

Tried Khan I got confused after the video

 

[ZeldaSylveon]

i think if you're multiplying you add the exponents and if you're dividing you subtract them? i think...

 

[Axujsho]

I'm pretty sure it'd be x(6), j(-7). When you have exponents that are on the same letter, you would add or subtract them, yes? Not multiply or divide. Correct me if I'm wrong.

Exponents have a few rules that we can use for simplifying expressions.

Simplify (x3)(x4) Copyright ? Elizabeth Stapel 2000-2011 All Rights Reserved


To simplify this, I can think in terms of what those exponents mean. "To the third" means "multiplying three copies" and "to the fourth" means "multiplying four copies". Using this fact, I can "expand" the two factors, and then work backwards to the simplified form:

(x3)(x4) = (xxx)(xxxx)
= xxxxxxx
= x7

Note that x7 also equals x(3+4). This demonstrates the first basic exponent rule: Whenever you multiply two terms with the same base, you can add the exponents:

( x m ) ( x n ) = x( m + n )

Taken from:
http://www.purplemath.com/modules/exponent.htm

 

[RayOfHope]

Ah! That's right, maybe when the two variables are multiplied, the exponents are added.

No math classes for a few months and I forget everything.

edit: Er, I saw your first post after I posted that last one by the way.

 

[Radda]

What grade are you in? o__o
And hopefully this video helps?
http://www.youtube.com/watch?v=Z6T1BtXKZbs

 

[Beleated_Media]

I'm pretty sure it'd be x(6), j(-7). When you have exponents that are on the same letter, you would add or subtract them, yes? Not multiply or divide. Correct me if I'm wrong.

Exponents have a few rules that we can use for simplifying expressions.

• Simplify (x[SUP]3[/SUP])(x[SUP]4[/SUP]) Copyright ? Elizabeth Stapel 2000-2011 All Rights Reserved

• To simplify this, I can think in terms of what those exponents mean. "To the third" means "multiplying three copies" and "to the fourth" means "multiplying four copies". Using this fact, I can "expand" the two factors, and then work backwards to the simplified form:
  
  • (x[SUP]3[/SUP])(x[SUP]4[/SUP]) = (xxx)(xxxx)
    = xxxxxxx
    = x[SUP]7[/SUP]

Note that x[SUP]7[/SUP] also equals x[SUP](3+4)[/SUP]. This demonstrates the first basic exponent rule: Whenever you multiply two terms with the same base, you can add the exponents:

• • ( x[SUP] m[/SUP] ) ( x[SUP] n[/SUP] ) = x[SUP]( m + n )
    [/SUP]​
    [SUP]
    Taken from: [/SUP]
    http://www.purplemath.com/modules/exponent.htm

They worksheet told me that I need to simplify with different bases...

 

[RayOfHope]

if you're dividing you subtract them? i think...

That is definitely correct.

 

[Beleated_Media]

What grade are you in? o__o
And hopefully this video helps?
http://www.youtube.com/watch?v=Z6T1BtXKZbs

Younger than you'd think :/

 

[Radda]

Younger than you'd think :/

Uhh 5 or 6th grade?Thats when they started exponents for me

 

[Beleated_Media]

Uhh 5 or 6th grade?Thats when they started exponents for me

Older

 

[RayOfHope]

Simplify different bases? What exactly does your worksheet say?