no 6 sampai 10. tolong dijawab dengan cara
Matematika
ryan729
Pertanyaan
no 6 sampai 10. tolong dijawab dengan cara
2 Jawaban
-
1. Jawaban Anonyme
Bab Persamaan Linear
Matematika SMP Kelas VIII
6] (2/(x + 3)) - (3/(x - 2)) = (2 (x - 2) - 3 (x +3)) / ((x + 3) (x - 2))
= (2x - 4 - 3x - 9) / (x² + x - 6)
= (-x - 13) / (x² + x - 6)
7] (2x/3x) . ((x - 4)/6x) = (2/3) . ((x - 4)/6x)
= (2(x - 4)) / (3 . 6x)
= (x - 4) / 9x
8] ((ab²)/c) : (b/ac) = ((ab²)/c) . (ac/b)
= (c/c) . (a²b²)/b
= a²b
9] ((x²y³)/3z) : ((18xy/6) = (x²y³)/3z) . (1/(3xy))
= ((x²y²)/(xy) . 1/(2z . 3)
= xy/(6z)
10] ((x² + y²)/(x + y)) : (x/y + y/x) = ((x² + y²)/(x + y)) : ((x² + y²)/(xy))
= ((x² + y²)/(x + y)) . ((xy)/(x² + y²))
= (x + y)/(xy) -
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