(4/k-m)-(3/k+m)=....tolong dijawab pake cara
Matematika
rachel170
Pertanyaan
(4/k-m)-(3/k+m)=....tolong dijawab pake cara
1 Jawaban
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1. Jawaban Hanifahwh
[4 / (k - m) ]- [3 / (k + m)] = ..
[4 (k + m) / (k + m) (k - m) ] - [3 (k - m) / (k + m) (k - m]
= 4k + 4m / (k+m)(k-m) - 3k - 3m/(k+m)(k-m)
= (4k - 3k + 4m - 3m ) / (k+m)(k-m)
= (k+m) / (k+m)(k-m)
= 1 / (k-m)