# EASY Q (Multiplying sign rules)

#### ASMATHSHELPME

Hi,

I've tottally confused myself over the mutiplying rules.
Can someone please tell me all the rules

+x+ =
-X+ =
+X- =
-X- =

Because im stupid and keep messing up my polynomials with them.

look forward to posting many easy questions for you guys, Dam some of this stuff is complicated you guys are good.

AS.

#### marlon

ASMATHSHELPME said:
Hi,

I've tottally confused myself over the mutiplying rules.
Can someone please tell me all the rules

+x+ =
-X+ =
+X- =
-X- =

Because im stupid and keep messing up my polynomials with them.

look forward to posting many easy questions for you guys, Dam some of this stuff is complicated you guys are good.

AS.
+x+ = +
-X+ = -
+X- = -
-X- = +

marlon

#### HallsofIvy

Homework Helper
Same signs= positive,

Different signs= negative:

+x+= +
-x- = +
+x- = -
-x+ = -

#### ASMATHSHELPME

thanks guys, Knew it was easy :) Helped me though, Even if it was easy.

Appreciate the fast reponse.

#### marlon

HallsofIvy said:
Same signs= positive,

Different signs= negative:

+x+= +
-x- = +
+x- = -
-x+ = -
I am sorry , but is it really necessary to give the exact same answer that has already been given ?

marlon

#### matt grime

Homework Helper
making another unnecessry post here but have you checked the times of your response and hallsofivy's? cos it is more than entirely possible he didn't even notice yours.

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