anonymous 4 years ago Solve :)

1. anonymous

$\sqrt{2x+5}$ = 7

2. anonymous

square both sides

3. anonymous

what do you get then?

4. anonymous

ohh okay i think i can solve it now hang on so yalll can check it

5. anonymous

(2x+5) =7^2 -5 -5 2x=44 /2 /2 x=22?

6. anonymous

Yup good job

7. anonymous

Yep.

8. anonymous

thanks everyone :)

9. anonymous

@LaurenAshley1201 You can also use Wolfram Alpha as well, it will solve equations for you in seconds and will show you with steps on how to get your answer.

10. anonymous

You should only do that to check your work not to get answer.

11. anonymous

You can't use wolfram in test so don't rely on it.

12. anonymous

@RyanL. Of course, it's just useful. I live in a different time zone from most people on here and sometimes nobody is online when I ask a question!