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Mathematics 27 Online
OpenStudy (umarsback):

Help.

OpenStudy (umarsback):

Subtract:(3x2 - x - 5) - (x + 2)

OpenStudy (anonymous):

distribute the minus sign first.

OpenStudy (anonymous):

and i believe you mean this 3x^2?

OpenStudy (umarsback):

yeah 3x^2

OpenStudy (umarsback):

wanna tell me how you distribute the minus signs? lol i havent really understood how to do this.

OpenStudy (anonymous):

well, i'm not very good at explaining stuff i'm more of a learner by doing.

OpenStudy (anonymous):

(3x2 - x - 5) - (x + 2) 3x2 - x - 5) - x - 2

OpenStudy (anonymous):

do you understand what i just did?

OpenStudy (umarsback):

Yeah you took away the brackets?

OpenStudy (umarsback):

and changed it to a negative..

OpenStudy (anonymous):

yes, that's correct, so can you take it from here.

OpenStudy (umarsback):

so, (- x - 5) - x - 2?

OpenStudy (umarsback):

Do they add?

OpenStudy (anonymous):

yeps.

OpenStudy (umarsback):

so the answer is 3x2 - 2x -7?

OpenStudy (anonymous):

correct!

OpenStudy (umarsback):

THANKS!

OpenStudy (anonymous):

your welcome!

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