Jawaban:
soal no 4
penyelesaiannya ada dua langkah
penyelesaian 1
|2x - 1| = 7
2x = 7 +1
2x = 8
x = 8/2
x = 4
penyelesaian 2
2x - 1 = -7
2x = -7 + 1
2x = -6
x = -6/2
x = -3
HP = (-3,4)
soal no 5
|x - 7| = 10
(x-7)² = 10²
(x-7)² - 10² = 0
( x-7-10)² (x-7+10) = 0
(x + 3) (x - 7) = 0
x + 3 = 0
x - 17 = 0
x = 17
maka, x = -3
atau. x = 17
Penjelasan dengan langkah-langkah:
maaf kalo salah
itu kak caranya maaf kalau salah
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Jawaban:
soal no 4
penyelesaiannya ada dua langkah
penyelesaian 1
|2x - 1| = 7
2x = 7 +1
2x = 8
x = 8/2
x = 4
penyelesaian 2
2x - 1 = -7
2x = -7 + 1
2x = -6
x = -6/2
x = -3
HP = (-3,4)
soal no 5
|x - 7| = 10
(x-7)² = 10²
(x-7)² - 10² = 0
( x-7-10)² (x-7+10) = 0
(x + 3) (x - 7) = 0
x + 3 = 0
x = -3
x - 17 = 0
x = 17
maka, x = -3
atau. x = 17
Penjelasan dengan langkah-langkah:
maaf kalo salah
itu kak caranya maaf kalau salah