1. ## are these correct

(x-y)(y-x) if x=-2 y=3
(-2-3)(3-2)
(-5)(1)=-5
----------------------
(x-y)-(x-y) if x=-2 y=3
(-2-3)-(-2-3)
-5+5=0
------------------------
(-x)+(-y) if x=-2 y=3
(-2)+(-3)=5
----------------------
-xa(x-a) if a =-2 x=4
-4(-2)(-2-4)
8*6=48
and thanks for the help I appreciate it

2. G'day, Benita!

If I number each...

1) Be careful, you made the same mistake as I mentioned before.

2) Good (you can go straight to zero in the future: a - a = 0; (a+b) - (a+b) = 0)

3) You left out a negative sign again (look to the left). Be careful!

4) You might want to check the bracket on the right.

Good luck!

3. ## are these correct

-a(a-b) if a=-2 b=-7
-2(-2+7)
-2(5)=-10
---------------
(a-x)(-x) if a=2 x=-5
2+5(-5)
7(-5)=-35
_____________________
(x-y)-(y-x) if x=-2 y=-4
(-2+4)+(4-2)
2+2=4

4. ## Re: are these correct

Originally Posted by vermonstervt
-a(a-b) if a=-2 b=-7
-2(-2+7)
-2(5)=-10
should be 2(-2+7) ; -(-2) = 2

5. Dennis,
ive seen ALOT of the answers u give out to people. ive analyzed u. and guess wat???

YOU DON'T GET ALOT OF THE STUFF RIGHT.

x(x-y) Where
x=-2
and
y=-3

so the problem to solve would be,

-2(-2--3)

2 negatives equal a possitive.

So that would change the problem into:

-2(-2+3)

work within the perenthesis firt. remember pemdas???
-2+3= POSSITIVE 1

now,
-2+1=-1

OKOKOKOKOKOKOK???????

6. Originally Posted by beautifull_love101
Dennis, ive seen ALOT of the answers u give out to people. ive analyzed u. and guess wat??? YOU DON'T GET ALOT OF THE STUFF RIGHT.
Actually Denis (not "Dennis") helps a lot of people, which is more than can be said for your spamming of these forums.

Eliz.

7. Originally Posted by beautifull_love101
So that would change the problem into:
-2(-2+3)

you're ok up to here;

work within the perenthesis firt. remember pemdas???
-2+3= POSSITIVE 1
now,
-2+1=-1

NO. It's -2 times 1, which equals -2 : answer is -2
-2(1) means MULTIPLY

Now go away, you little brat; quit disturbing the site and confusing
the people who are asking for help...

8. firt of all im not a brat.
second you dont talk to me like that.

9. got it?

10. WHAT??? you can mess up poeple too. im not the only that makes mistakes.
you can make thiem too.

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