This problem problem involves partial fraction decomposition of distinct factors. The viewer should pay close attention to the instructions for the calculator, and that when you go 2nd quit and then 2nd matrx you go to math all the way down to RREF then continue the steps. Something else would be to be very careful with your signs and everything plugged into the calculator, because one tiny mistake can cause you to get everything wrong. We don't want all this work to go to waste and start all over so be careful. Another thing would be to always forget to get rid of the x's when you have grouped like terms.
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