Help with exponenets?

They worksheet told me that I need to simplify with different bases...
^= TO the power of
/ = divided by or fraction

Multiplying exponents with same base
For exponents with the same base, we should add the exponents:
a^n ? a^m = a^n+m
Example:
2^3 ? 2^4 = 2^(3+4) = 27 = 2?2?2?2?2?2?2 = 128
Multiplying exponents with different bases
When the bases are diffenrent and the exponents of a and b are the same, we can multiply a and b first:
a^n ? b^n = (a ? b)^n
Example:
3^2 ? 4^2 = (3?4)^2 = 122 = 12?12 = 144

When the bases and the exponents are different we have to calculate each exponent and then multiply:
a^n ? b^m
Example:
3^2 ? 4^3 = 9 ? 64 = 576
Multiplying negative exponents
For exponents with the same base, we can add the exponents:
a^-n ? a^-m = a^-(n+m) = (1/a)^n+m
Example:
2^-3 ? 2^-4 = 2^-(3+4) = 2^-7 = 1/27 = 1/(2?2?2?2?2?2?2) = 1/128 = 0.0078125

When the bases are diffenrent and the exponents of a and b are the same, we can multiply a and b first:
a^-n ? b^-n = (a ? b)^-n
Example:
3^-2 ? 4^-2 = (3?4)^-2 = 12^-2 = 1/122 = 1/(12?12) = 1/144 = 0.0069444

When the bases and the exponents are different we have to calculate each exponent and then multiply:
a^-n ? b^-m
Example:
3^-2 ? 4^-3 = (1/9) ? (1/64) = 1/576 = 0.0017361
Multiplying fractions with exponents
Multiplying fractions with exponents with same fraction base:
(a/b)^n ? (a/b)^m = (a/b)^n+m
Example:
(4/3)^3 ? (4/3)^2 = (4/3)^3+2 = (4/3)^5 = 45/35 = 4.214

Multiplying fractions with exponents with same exponent:
(a / b)^n ? (c / d)^n = ((a / b)?(c / d))^n
Example:
(4/3)^3 ? (3/5)^3 = ((4/3)?(3/5))^3 = (4/5)^3 = 0.83 = 0.8?0.8?0.8 = 0.512

Multiplying fractions with exponents with different bases and exponents:
(a / b)^n ? (c / d)^m
Example:
(4/3)^3 ? (1/2)^2 = 2.37 ? 0.25 = 0.5925
Taken from: http://www.rapidtables.com/math/number/exponent/multiplying-exponents.htm
 
That is correct. z/z^(5) would equal(=) z^(1) - z^(5) which would equal(=) z^(-4)

z/z^(5) is not the same thing as z^(1) - z^(5). I know what you meant, but just to prevent confusion.

z/z[SUp]5[/SUp] = z[sup]1 - 5[/sup] = z[sup]-4[/sup] OR 1/z[sup]4[/sup]
 
Last edited:
z/z^(5) is not the same thing as z^(1) - z^(5). I know what you meant, but just to prevent confusion.

z/z[SUp]5[/SUp] = z[sup]1 - 5[/sup] = z[sup]-4[/sup] OR 1/z[sup]4[/sup]

the subtraction eqaution is saying that you subtract the exponents but yea the answers are the same and they would probably want you to get rid of the negative exponent
 
Last edited:
z/z^(5) is not the same thing as z^(1) - z^(5). I know what you meant, but just to prevent confusion.

z/z[SUp]5[/SUp] = z[sup]1 - 5[/sup] = z[sup]-4[/sup] OR 1/z[sup]4[/sup]

1/z^4 is inverting, which is z^-4. It's the same thing. 1/z^4 = z^-4

1/ 2^(4) = 1/16 which = 2^(-4) which = 1/16
 
Last edited:
1/z^4 is inverting, which is z^-4. It's the same thing. 1/z^4 = z^-4

1/ 2^(4) = 1/16 which = 2^(-4) which = 1/16

That's not what I was referring to.

You said z/z[sup]5[/sup] is the same thing as z[sup]1[/sup] - z[sup]5[/sup]
It's not the same. I was just clearing that up for the OP so they wouldn't get the wrong idea.

- - - Post Merge - - -

Also what do I o with that extra number? Such as

6ng^3 x (2n^2 x g^3)

*The six and the first two

6ng[sup]3[/sup](2n[sup]2[/sup])(g[sup]3[/sup])
12n[sup]3[/sup]g[sup]3[/sup](g[sup]3[/sup])
12n[sup]3[/sup]g[sup]6[/sup]
 
Last edited:
6ng^3 x 2n^2 x g^3 would = 6ng^3 x 2n^2g^3 = 12n^3g^6
Proof: n=6, g=8; 6 x 6 x 8^3 x 2 x 6^2 x 8^3 = 36 x 512 x 2 x 36 x 512 = 679,477,248 = 12 x 6^3 x 8^6 = 12 x 216 x 262144 = 679,477,248

- - - Post Merge - - -


z/z^(5) is not the same thing as z^(1) - z^(5). I know what you meant, but just to prevent confusion.

z/z5 = z1 - 5 = z-4 OR 1/z4

Yeah, sorry. I'm pretty drunk right now, and I got that mixed up. I feel soooo stupid right now. >w<
z^1/z^5 would = z^(1 - 5) which would = z^-4 OR 1/z^4, like you said.

Ugh. I feel really stupid.
 
Last edited:
Back
Top