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Mathematics 12 Online
OpenStudy (anonymous):

OpenStudy (precal):

same denominator, just put your numerator terms together

OpenStudy (precal):

do you remember how to add fractions?

OpenStudy (anonymous):

OpenStudy (anonymous):

i thought maybe it was a ?

OpenStudy (precal):

sorry, I was helping someone doing another problem

OpenStudy (precal):

You can ignore the denominator because they are the same

OpenStudy (anonymous):

oh ok but did I get it right though?

OpenStudy (precal):

so what is \[4x^2+x-7+4x-3x^2\]

OpenStudy (anonymous):

huh?

OpenStudy (anonymous):

8x - 7 3x^3

OpenStudy (precal):

we are still working on the same problem

OpenStudy (precal):

you don't have x^3, where do you get 8x from? just curious

OpenStudy (anonymous):

add 4 x?

OpenStudy (precal):

add 4x to what?

OpenStudy (anonymous):

together

OpenStudy (precal):

you need to put like terms together 4x and x \[4x^2\] and \[-3x^2\]

OpenStudy (precal):

so what is your final answer?

OpenStudy (anonymous):

7x^2

OpenStudy (precal):

4x^2-3x^2 is not 7x^2 signs are different, subtract numbers and take sign of larger number

OpenStudy (precal):

\[x^2+5x-7\]

OpenStudy (precal):

that is your final answer but put it over your denominator. Good night gotta go

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