-3x^2 - 3 + 10x - 6

frenchyff

New member
Joined
Oct 31, 2013
Messages
7
-3x^2 - 3 + 10x - 6

I know the answer to this problem is

-3x^2 +10x - 9

my problem is understanding this step the way i would work it out gives the answer -3x^2 + 10x - 3 which is wrong.
my understanding is the sign is always stuck to the number when grouping like terms.

-3x^2 - 3 + 10x - 6
=
(group like terms)
-3x^2 + 10x - 3 - 6
=
-3x^2 + 10x - 3

any help would be great cheers guys :)
 

serds

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Joined
May 30, 2013
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55
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frenchyff

New member
Joined
Oct 31, 2013
Messages
7
thank you guys i can see my error stupid mistake on my part.. :)
 
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