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Mathematics 22 Online
OpenStudy (anonymous):

After x+1/3 - x+2/2x have been combined using the Least Common Denominator of 6x, what is the numerator? Answer: -x2 + x + 3

hartnn (hartnn):

how you got that ?

OpenStudy (anonymous):

I got the negative from the subtraction

OpenStudy (anonymous):

6x is on the bottom

OpenStudy (anonymous):

6/2 = 3

OpenStudy (anonymous):

that'd be a positive 3 so = 3

OpenStudy (anonymous):

i mean it wouldn't equal, i meant you'd add 3

hartnn (hartnn):

3 is in the denominator, LCM =6x so you'll multiply and divide by 2x 2x (x+1) will be your first term.

OpenStudy (anonymous):

i was wrong wasnt i:(

hartnn (hartnn):

2x is in the denominator, LCM =6x so you'll multiply and divide by 3 3(x+2) will be your 2nd term. got this ?

hartnn (hartnn):

2x^2+2x -3x-6 = 2x^2-x-6 are you getting all this ?

OpenStudy (anonymous):

how is 2x in the denominator?

OpenStudy (anonymous):

i get the 3(x + 2) part

OpenStudy (anonymous):

how did you get negative 3 in "2x^2+2x -3x-6" this?

hartnn (hartnn):

x+2/2x in your question.... there is minus - sign in between 2x(x+1)- 3(x+2)

OpenStudy (anonymous):

oh okay

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