## anonymous 3 years ago (3q^2)^4 my answer 3q^8 am I right I hope ?

1. anonymous

When you have an exponent to a power, you multiply the exponents: $(x ^{5})^{2}= x ^{10}$ And in your example, you're right!

2. anonymous

thxs

3. campbell_st

you need to change 3 to 3^4 abd evaluate it the power of 4 is operating on the 3 and the q

4. anonymous

really?

5. anonymous

you have to raise everything to the power of 4, not just the $$q^2$$ part

6. campbell_st

7. anonymous

okay

8. anonymous

believe @campbell_st he is right

9. anonymous

$$(ab)^n=a^nb^n$$ so $$(3q^2)^4=3^4q^8$$

10. anonymous

11. anonymous

careful here

12. anonymous

$$3^4\neq 3\times 4$$ $3^3=3\times 3\times 3\times 3$

13. anonymous

typo there, i meant $3^4=3\times 3\times 3\times 3$

14. anonymous

oh 81 I see its 81q^8

15. anonymous

yes it is

16. anonymous

wow thxs