## rannsan 3 years ago x^2-49

1. AriPotta

what's the question?

2. hartnn

49 is the square of ?

3. jhonyy9

so do you know the formula of differents of two squares ?

4. AriPotta

i'm so confused

5. UsukiDoll

perfect square so factor

6. rannsan

now I know my brain is goneLOL

7. UsukiDoll

O______________________O.

8. hartnn

49 is a square of?

9. UsukiDoll

factoring has so many forms...look up factoring a perfect square

10. rannsan

7

11. rannsan

duh

12. AriPotta

how do you know it's a perfect square? ugh. can you guys explain this to me? i'm learning too

13. UsukiDoll

what is the square root of 49 AriPotta?

14. AriPotta

7...but is 7 the answer? how do you get 7 from x^2 - 49?

15. UsukiDoll

-_- what is the square root of x^2

16. hartnn

yes, 7 is correct, so u can write 49 as 7^2 ok?

17. rannsan

7*7=49

18. wwe123

x= +7 or -7

19. Axohatah

(x-7)(x+7)

20. UsukiDoll

OH DEAR...! |dw:1348912086895:dw|

21. rannsan

I got it

22. AriPotta

ohhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh you're writing it out like that. i get it.

23. rannsan

I have more coming

24. UsukiDoll

uh oh mathslover is gonna scold me for losing my temper here.

25. UsukiDoll

try doing vector calculus XD