Jawab:
persamaan kuadrat
Penjelasan dengan langkah-langkah:
1/x - 1/( x+ 3) = 3/10 ....kalikan dengan 10(x)(x + 3)
.
10(x + 3) - 10(x) = 3 (x)(x + 3)
10x + 30 - 10 x = 3 (x² + 3x)
30 = 3 (x² + 3x)
3 (x² + 3x) = 30
(x² + 3x) = 10
x² + 3x -10 =0
(x + 5)(x - 2) = 0
x = - 5 atau x = 2
x1 > x2
x1 = 2
x2 = - 5
nilai x1 - x2 = 2 - (- 5)
x1 - x2 = 2 + 5
x1 - x2 = 7
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Jawab:
persamaan kuadrat
Penjelasan dengan langkah-langkah:
1/x - 1/( x+ 3) = 3/10 ....kalikan dengan 10(x)(x + 3)
.
10(x + 3) - 10(x) = 3 (x)(x + 3)
10x + 30 - 10 x = 3 (x² + 3x)
30 = 3 (x² + 3x)
3 (x² + 3x) = 30
(x² + 3x) = 10
x² + 3x -10 =0
(x + 5)(x - 2) = 0
x = - 5 atau x = 2
x1 > x2
x1 = 2
x2 = - 5
.
nilai x1 - x2 = 2 - (- 5)
x1 - x2 = 2 + 5
x1 - x2 = 7