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Mathematics 9 Online
OpenStudy (anonymous):

(-3y2 - 7y - 9) - (4y2 + 6y + 9)

OpenStudy (anonymous):

ok expand the brackets

OpenStudy (anonymous):

-7y2-y

OpenStudy (anonymous):

in negative sign in - (4y2 + 6y + 9) is given to everything inside of the brackets. so u will get -4y2 - 6y - 9 try it now :)

OpenStudy (anonymous):

A. y2 - y B. -9y2 - 11y - 18 C. 7y2 + 13y + 18 D. -7y2 - 13y - 18

OpenStudy (anonymous):

so it's b

OpenStudy (anonymous):

no, show me ur working :)

OpenStudy (anonymous):

-7y2-y-answer

OpenStudy (anonymous):

(-3y2 - 7y - 9) - (4y2 + 6y + 9) -3y2 - 7y - 9 - 4y2 - 6y - 9 Now add and minus all like terms

OpenStudy (anonymous):

wat

OpenStudy (anonymous):

-7y2 - 7y - 9 - 6y - 9 i minused -3y2 - 4y2 to get -7y^2 now i wat u to do the same with the rest of the equation

OpenStudy (anonymous):

bru i dont get it

OpenStudy (anonymous):

hello

OpenStudy (anonymous):

u understand how i got -7y^2?

OpenStudy (anonymous):

not really

OpenStudy (anonymous):

-3 - 4 = wat?

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