Question

Which of these choices show a pair of equivalent expressions?
A.7^5/7 and (√ 7)^5
B.6^7/2 and (√ 6)^7
C.(4√ 81)^7 and 81^7/4
D.5^2/3 and (√ 5)^3

Answer 1

Please Help

Answer 2

@satellite73 can you help me please????

Answer 3

\[47^{\frac{5}{7}}=\sqrt[7]{7^5}\] so not the first one

Answer 4

\[\huge b^{\frac{m}{n}}=\sqrt[n]{b^n}\] is what you are using

Answer 5

so for example \[6^{\frac{7}{2}}=\sqrt{6}^7\]

Answer 6

clear or no?

Answer 7

yes clear

Answer 8

there is another choice that is good as well

Answer 9

is it D?

Answer 10

@satellite73 sorry but the exponent of b inside radical is m not n

Answer 11

no not D

Answer 12

C? BUT I THINK ITS JUST B AM I CORRECT? @satellite73

Answer 13

Do you still need help?

Answer 14

No okay

Answer 15

@Athecool yes!

Answer 16

i dont understand this lol

Answer 17

i made a typo there, should be \[\huge b^{\frac{m}{n}}=\sqrt[n]{b^m}\]

Answer 18

it is just notation
so for example \[\huge 7^{\frac{5}{4}}=\sqrt[4]{7}^5\]

Answer 19

ok @satellite73

Answer 20

it stays the same correct? @satellite73