## anonymous one year ago Please Help! I Need Explanation & Help On How To Do This!!!! Medal and Fan?!?!

1. anonymous

$\sqrt[-4]{x-3}=12$

2. anonymous

i need to solve for x

3. anonymous

@mathway can you help me with this one too please? the -4 throws me off

4. anonymous

Do the same thing. Remove the radical sign by raising both sides both sides to the power of -4.

5. anonymous

oh okay thanks :)

6. anonymous

|dw:1443041679205:dw|

7. anonymous

how do i subtract 3 from that

8. anonymous

Add 3 on both sides.

9. anonymous

oh i ment add

10. anonymous

how do i add together 1/(12^4) to 3

11. anonymous

Use LCD. What is $$\huge 12^4$$ first?

12. anonymous

20736

13. anonymous

so the equation is now: $\huge x-3=\frac{ 1 }{ 20,736 }$

14. anonymous

Add three on both sides. $$\huge x=\frac{ 1 }{ 20,736 }+3$$

15. anonymous

The use LCD. What is $$\huge 20,736 \times 3$$ ?

16. anonymous

LCD: $\huge x= \frac{ 1 }{ 20,736 } + \frac{ 20,736 \times 3 }{ 20,736 }$

17. anonymous

oh my goodness uhhhhh lol

18. anonymous

62208 i think

19. anonymous

Yes! Use a calculator if you aren't sure. $$\huge x= \frac{ 1 }{ 20,736 } + \frac{62,208 }{ 20,736 }$$ This can also be written as: $$\huge x= \frac{ 1+ 62,208 }{ 20,736 }$$