Is this correct

vermonstervt

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x(x-y) if x=-2 y=-3
-2(-2-3)
-2*-5=-10
 

stapel

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What is the sign on the product of two negatives?

Eliz.
 

vermonstervt

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sign on the product of two negatives is positive

the sign on the product of two negatives is a positive and thanks
 

Unco

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What do two negative signs make? e.g. a - -b = ?
 

vermonstervt

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Two Negative signs = a positive sign

doesnt two negative signs= a positive sign
 

Unco

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Yup, check your substitution of y again.
 

vermonstervt

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so the answer would be 10 and thanks i appreciate this My success in math sucks :)
 

Unco

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Have a closer look at what you have substituted inside the brackets. Then do the multiplication by -2 again.
 

vermonstervt

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x(x-y)if x=-2 y=-3
-2(-2+3)
-2*1=-2
 

Unco

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Well done, Benita!
 

vermonstervt

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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
 

Unco

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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!
 

vermonstervt

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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
 

Denis

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Re: are these correct

vermonstervt said:
-a(a-b) if a=-2 b=-7
-2(-2+7)
-2(5)=-10
should be 2(-2+7) ; -(-2) = 2
so answer is +10
 
G

Guest

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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???????


:!: :?: :idea: :arrow: ANSWER= -1
 

stapel

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beautifull_love101 said:
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.
 

Denis

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beautifull_love101 said:
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...
 
G

Guest

Guest
firt of all im not a brat.
second you dont talk to me like that.
:roll:
 
G

Guest

Guest
got it?
 
G

Guest

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