## anonymous one year ago Will medal and fan.

1. anonymous

Solve the equation $\sqrt{x+4}-3=1$ for the variable. Show each step of your solution process.

2. anonymous

@welshfella @ankit042 @Loser66 @DarkMoonZ @Nnesha

3. welshfella

first add 3 to both sides of the equation then square both sides

4. welshfella

then its easy

5. anonymous

Ok so $\sqrt{x+4+3}-3=1+3$ So $\sqrt{x+4}=4$

6. anonymous

And the $\sqrt{x^2+16}=16$

7. anonymous

@welshfella

8. welshfella

No when you 'square the square root' of something the answer is that something. for example sqrt 4 squared = 4

9. anonymous

So take away the square root thing?

10. anonymous

So just x+4 = 4

11. welshfella

yea - so what do you get after sqrt(x + 4) = 4

12. welshfella

no not x + 4 = 4 - BOTH SIDES of the equation must be squared

13. anonymous

I'm not following, what would the left side be?

14. welshfella

the keft side is x + 4 - that is correct but the right side must also be squared - the 4

15. anonymous

So the right side is 16?

16. welshfella

yes

17. anonymous

x + 4 = 16

18. welshfella

x + 4 = 16

19. anonymous

Ah because it wasn't under the square root sign.

20. welshfella

gotta go I think you got it now

21. welshfella

yea