## mikaa_toxica13 Group Title Choose the correct simplification of the expression 9 over h^-3. h^3 over 9 9 over h^3 9h^3 This expression is already simplified. @mathstudent55 can u help ? one year ago one year ago

1. MATTW20 Group Title

c

2. mikaa_toxica13 Group Title

explain @MATTW20

3. MATTW20 Group Title

if you have an expression with a negative exponent that is in the bottom portion of the fraction. putting it in the top of the fraction makes it positive.

4. NickR Group Title

1/exponent is the same as -exponent/1

5. mikaa_toxica13 Group Title

cann u help with a few others ? its short

6. MATTW20 Group Title

sure

7. mikaa_toxica13 Group Title

Choose the correct simplification of the expression (2b over c)^3. 2b^3 over c^3 8b^3 over c^3 2b^3 over c 2b over c^3

8. MATTW20 Group Title

a

9. MATTW20 Group Title

both expressions get raised to the third power because they're in parentheses

10. mikaa_toxica13 Group Title

Choose the correct simplification of the expression g^5 h^4 over g ^2 h^3. g^7h g^3h g^7h^7 g^3 over h^7

11. MATTW20 Group Title

b. When you have variables with exponents over variables with exponents you subtract the exponents

12. mikaa_toxica13 Group Title

@MATTW20 last one i promise ! Show the expanded form and simplification of x^6 over x^2. Explain in your own words how you can simplify x^6 over x^2 without having to write the expanded form. Create your own fraction with like bases, coefficients, and show its simplification

13. MATTW20 Group Title

|dw:1362510116798:dw|

14. MATTW20 Group Title

you can simplify (x^6)/(x^2) without writing expanded form by using the formula $\frac{ x ^{a} }{ x ^{b} }=x ^{a-b}$ so $\frac{ x ^{6} }{ x ^{2} }=x ^{6-2}=x ^{4}$

15. mikaa_toxica13 Group Title

thank u !!!!!

16. MATTW20 Group Title

As for the last one all you have to do is make up a problem of your own and solve it

17. mikaa_toxica13 Group Title

thats the part im not good at

18. MATTW20 Group Title

why?

19. MATTW20 Group Title

you can make it as easy or difficult as you like

20. mikaa_toxica13 Group Title

yeaa but i have no clue aout this. so i would know how to even make an equation or solve it :/

21. MATTW20 Group Title

just put some in the form of $\frac{ x ^{a} }{ x ^{b} }$ a and b can be whatever number you like

22. MATTW20 Group Title

just make them different numbers

23. MATTW20 Group Title

@mikaa_toxica13

24. mikaa_toxica13 Group Title

sory. i was preoccupied. u know with what lol. something like x^5 over x^7 ?

25. mikaa_toxica13 Group Title

@MATTW20

26. MATTW20 Group Title

okay so now you use the formula i showed you earlier $\frac{ x ^{a} }{ x ^{b} }=x ^{a-b}$ just substitute a for 5 and b for 7

27. mikaa_toxica13 Group Title

so it would be x^5 --- = x^5-7 x^7

28. MATTW20 Group Title

which is $x ^{-2}$

29. MATTW20 Group Title

but what if we wanted the exponent to be positive?

30. mikaa_toxica13 Group Title

oh i thought it was supposed to be like 5 minus 7

31. MATTW20 Group Title

well what is 5-7?

32. mikaa_toxica13 Group Title

idk btw the second answer u gave me was wrong.

33. MATTW20 Group Title

sorry about that It's been a while since taking algebra. The answer is right but idk what you're instructor was looking for in the explanation.

34. MATTW20 Group Title

anyway the answer would be $x ^{-2}$ or if you like $\frac{ 1 }{ x ^{2} }$

35. MATTW20 Group Title

oh the 2nd overall answer. My fault i completely apologize. It would've been b.

36. MATTW20 Group Title

anyway good luck sorry about the mistake. I'm here to help if you need it

37. mikaa_toxica13 Group Title

i got it thanks maybe u should recheck your math

38. MATTW20 Group Title

yes ma'am