1. ## a friend asked me this

hello, a friend asked me this and I don't know if my answer is correct. the prob is [ 3 - (-2)] [ 3 + l -2 l] and answer is 25. pls tell me if I'm way wrong or not.

2. Originally Posted by rsason
hello, a friend asked me this and I don't know if my answer is correct. the prob is [ 3 - (-2)] [ 3 + l -2 l] and answer is 25. pls tell me if I'm way wrong or not.
[3 - (-2)][3 +|-2|]

= [3 + 2][3 + |-2|] <-- -(-2) = 2

= [5][3 + 2] <-- |-2| = 2

= [5][5]

= 25

-Dan

3. ## re: a friend asked....

Thank you so much for a very speedy reply/assistance.

4. Topsquark is a Physics Maestro which means that he is Master of light which means that he can post replies faster than a speed of light!

5. Originally Posted by OReilly
Topsquark is a Physics Maestro which means that he is Master of light which means that he can post replies faster than a speed of light!
Superluminal velocities are only an optical illusions, and no information is
transfered at that speed.

RonL

6. Originally Posted by CaptainBlack
Superluminal velocities are only an optical illusions, and no information is
transfered at that speed.

RonL
Which means that universe doesn't exist?

7. Originally Posted by OReilly
Topsquark is a Physics Maestro which means that he is Master of light which means that he can post replies faster than a speed of light!
Originally Posted by CaptainBlack
Superluminal velocities are only an optical illusions, and no information is
transfered at that speed.

RonL
Well, I am made of tachyons, after all.

-Dan

8. You're right. The two negatives multiplied together make a positive, and the absolute value makes the -2 a positive also.

9. Originally Posted by topsquark
Well, I am made of tachyons, after all.

-Dan

Tachy

RonL

10. Originally Posted by chogo
The key word here being "apparent." (Though I'm still "akid" myself.)

-Dan

11. Originally Posted by topsquark
The key word here being "apparent." (Though I'm still "akid" myself.)

-Dan
"akkid"?

12. Originally Posted by topsquark
The key word here being "apparent." (Though I'm still "akid" myself.)

-Dan
Originally Posted by ecMathGeek
"akkid"?
"apparent" ==> "a parent"
"akid" ==> "a kid"

-Dan

13. [ 3 - (-2)] [ 3 + l -2 l]

= [3+2][3+2] : Remember l -2 l = 2
= [5][5]
=25