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Mathematics 19 Online
OpenStudy (anonymous):

Question

OpenStudy (anonymous):

hit me

OpenStudy (anonymous):

say it

OpenStudy (anonymous):

OpenStudy (anonymous):

Hi PG :)

OpenStudy (anonymous):

lol hi

OpenStudy (anonymous):

Do u know how to do these?

OpenStudy (anonymous):

-4 x -3

Nnesha (nnesha):

\[\huge\rm (x^m)^n = x^{m \times n}\] exponent rule multiply exponents

OpenStudy (anonymous):

so 12?

OpenStudy (anonymous):

yep

Nnesha (nnesha):

that's a exponent of 5 at the denominator

Nnesha (nnesha):

an*

OpenStudy (anonymous):

5^8 / 5^12

OpenStudy (anonymous):

can you help me with more?

Nnesha (nnesha):

now apply another exponent rule \[\huge\rm \frac{ x^m }{ x^n }= x^{m-n}\]

Nnesha (nnesha):

becuz bases are same so move exponent which is at the bottom to the top

OpenStudy (anonymous):

Nnesha (nnesha):

what did you get for the last question ?

OpenStudy (anonymous):

12

Nnesha (nnesha):

that's not the answer

OpenStudy (anonymous):

it's not 12

OpenStudy (anonymous):

that's just the exponent for the denominator

OpenStudy (anonymous):

8 - 12

OpenStudy (anonymous):

what do you think about the second one?

Nnesha (nnesha):

i'm pretty sure that's not the right answer

Nnesha (nnesha):

memorize exponent rules! when you multiply same bases you should add their exponents \[\huge\rm x^m \times x^n = m^{m+n}\]

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