## anonymous one year ago Solve log 2x2 + 2 = 6. Round to the nearest thousandth if necessary.

1. Nnesha

is it $\huge\rm log 2x^2 +2 =6$ ?

2. anonymous

I'm getting $50\sqrt{2}$ or just about 70.711

3. Nnesha

is it $\huge\rm log (2x^2 +2 )=6$ ? or 2 is base ?

4. trwatkins1

can help :( ???

5. trwatkins1

*cant

6. anonymous

its um log 2x^2 + 2 = 6 (log and 2x^2 are seperate)

7. Nnesha

oh so this is right $\huge\rm log (2x^2 +2 )=6$ 2 isn't base

8. Nnesha

alright can you please explain how you got the answer :=) what was ur first step ? :=)

9. Nnesha

hmm $\huge\rm log_2 (x^2+2)=6$ $\huge\rm log (2x^2+2)=6$ which is ur question ?

10. anonymous

it's the second one

11. anonymous

I subtract 2 from both sides log10 (2x^2) + 2 -2 = 6-2 log10 (2x^2)=4 I then used a = logb (b^a) so... 4= log10 (10^4) log10 (2x^2) = log10 (10^4) then all this other stuff/ not sure I want to type it all out lol

12. anonymous

@Nnesha

13. triciaal

|dw:1440784656572:dw|

14. triciaal

15. anonymous

yeah

16. anonymous

let me type them up

17. triciaal

still not sure of the original

18. anonymous

a. 707.106 b. 1.414 c. 502√ , or about 70.711 d. 52√ , or about 7.071

19. anonymous

@triciaal

20. anonymous

@welshfella hey can you help?

21. Nnesha

wait is there a parentheses ??

22. Nnesha

$\huge\rm log (2x^2 +2 )=6$ if ur question is like this then you can't move the 2 from the parentheses it's (2x^2+2)

23. Nnesha

$\huge\rm log ~2x^2 +2 =6$ if there isn't any parentheses then you can subtract 2

24. Nnesha

so which one is right first one or 2nd one ? is it $\huge\rm log ~2x^2 +2 =6$ OR $\huge\rm log (2x^2 +2 )=6$

25. Nnesha

if 2nd is right then 1st step) convert log to exponential form :=)