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Add or subtract the following expressions by finding a common denominator, and then simplifying your answer

Add or subtract the following expressions by finding a common denominator, and then-example-1
User Kulss
by
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1 Answer

4 votes

Solution

1.


(6)/(x+1)-(5)/(x-2)=(6(x-2)-5(x+1))/((x+1)(x-2))=(6x-12-5x-5)/((x+1)(x+2))=(x-17)/((x+1)(x+2))

2.


(x+3)/(x-4)-(x)/(x+2)=((x+3)(x+2)-x(x-4))/((x-4)(x+2))=(x^2+5x+6-x^2+4x)/((x-4)(x+2))=(9x+6)/((x-4)(x+2))

User McPherrinM
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