1. 3/x+2 + 2/x-3 2. 4/x+3 - 5/x-1 Tlng pake cara
Matematika
lennyrahmi1
Pertanyaan
1. 3/x+2 + 2/x-3
2. 4/x+3 - 5/x-1
Tlng pake cara
2. 4/x+3 - 5/x-1
Tlng pake cara
1 Jawaban
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1. Jawaban Sutr1sn0
1]
3/(x+2) + 2/(x-3)
= [3(x-3) + 2(x+2)]/(x+2)(x-3)
= [3x-9+2x+4]/[x^2 - x - 6]
= (5x-5)/(x^2 - x - 6)
2]
4/(x+3) - 5/(x-1)
= [4(x-1)-5(x+3)]/(x+3)(x-1)
= [4x-4-5x-15]/[x^2 + 2x -3]
= (-x-19)/(x^2 + 2x - 3)