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OpenStudy (anonymous):
how do you simlify this rational expression? 4m-8 over 4-2m
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OpenStudy (dumbcow):
factor out a 2 on top and bottom
OpenStudy (anonymous):
well for starters you can factor out a two from both top and bottom and cancel. Then you'll be left with something else that can be factored, and maybe have to factor out a negative sign. play around with it
OpenStudy (anonymous):
thank you!!
OpenStudy (dumbcow):
an intuitive approach is if you plug in different values for m, you always get -2 so the expression is equivalent to -2
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