Question

Help with exponents?

If I could just get help with one problem that I've worked on..

Answer 1

The first problem in that attachment is giving me a LOT of trouble.

Answer 2

Multiply or divide as indicated.

a ^ 5
______

a

I came up with a ^ 5 as the answer.

Answer 3

1 2 and 5 are wrong

Answer 4

Okay, thanks, could you help me with those?

Answer 5

\[\frac{a^5}{a}=\frac{a*a^4}{a}\]
does this help?

Answer 6

Um, I still don't understand..

Answer 7

\[\frac{a*a^4}{a}=\frac{a}{a}*a^4\]
how about now?

Answer 8

\[a^5=a*a*a*a*a\]

Answer 9

Oh, so multiply the numerator and denominator to the power of 4?

Answer 10

im not multiplying anything
im just factoring it

Answer 11

a number to an exponent "n"is the same as multiplying the number by itself n times
ex.\[a^4=a*a*a*a\]\[x^2=x*x\]\[2^5=2*2*2*2*2\]
and anything to an exponent of 0 is equal to 1
\[x^0=1\]
\[9001^0=1\]

Answer 12

when you divide exponents of like terms with each other, you subtract the bottom number from the top

\[\frac{x^5}{x^2}=x^{5-2}=x^3\]
\[\frac{3^{100}}{3^{99}}=3^{100-99}=3^1=3\]

Answer 13

ok

Answer 14

if they arent like terms, then you cant do anything to them
\[\frac{x^9}{y^9}\]
leave them as is

Answer 15

but wouldn't my problem just be x^5, because it is 5-0

Answer 16

also remember
\[x=x^1\]
thus
\[a=a^1\]

Answer 17

oh, so it would be 5 - 1 = 4, making the answer x^4 ?

Answer 18

if you have an exponent to another exponent, you multiply the 2
\[x^{3^2}=x^{3*2}=x^6\]

Answer 19

yes the first answer would be a^4

Answer 20

and you said my second answer was incorrect?

Answer 21

is that one just 11a^-2 ?

Answer 22

\[5a^2 *6a^4=5*a^2*6*a^4=5*6*a^2*a^4\]
the exponent is correct, however you do not add the 5 and 6, you multiply them

Answer 23

oh, 30a^-2 then

Answer 24

when you multiply an exponent to another exponent, you add them\[a^4+a^2=a^{4+2}=a^6\]
\[3^2*3^3=3^{2+3}=3^5\]

Answer 25

i said the exponent was correct!!! and then you go and change it

Answer 26

:( what do you mean? I never changed it...

Answer 27

you got a^6 not a^-2

Answer 28

so a^6 is the answer?

Answer 29

no... 30a^6.........

Answer 30

okay, okay.

Answer 31

If you want to help my with the fifth one, I'd appreciate it..

Answer 32

you should understand it by now
it was the same concept as the first problem
x=x^1
y=y^1

Answer 33

type your answer and ill check it

Answer 34

24b^3 c^4

Answer 35

why the heck did you add 4 to 20, when you're obviously dividing

Answer 36

exponent division= subtract the numbers
exponent multiplications = add the numbers

regular division is still division
regular multiplication is still multiplication

Answer 37

okay, I never got that...

Answer 38

so thanks,

Answer 39

so the 5 was correct, the exponents were wrong

Answer 40

and your new answer was absolutely incorrect