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Verified answer
A × b = 210a + b = 29
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b² = 239
b = √ 239
b ≈ 15
a × b = 210
a = 210/15
a = 14
Pembuktian
= a × b = 210
= 14 × 15 = 210
= 210 = 210
= a + b = 29
= 14 + 15 = 29
= 29 = 29
Terbukti
maka nilai yang memenuhi adalah
a = 14
b = 15
Selisih = 15 - 14 = 1
Verified answer
Mapel : MatematikaKelas : 6
Materi : Olimpiade SD
Kata Kunci : Bilangan
Kode Kategorisasi : 6.2.- ( Matematika Kelas 6 Olimpiade SD )
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x + y = 29
y = 29 - x
x × y = 210
x × (29 - x) = 210
29x - x² = 210
- x² + 29x = 210
- x² + 29x - 210 = 0
x² - 29x + 210 = 0
x² - 14x - 15x + 210 = 0
x(x - 14) - 15(x - 14) = 0
( x - 15 ) ( x - 14 ) = 0
x = 15 ..... ✔️
&
x = 14 ..... ✔️
Maka, selisih dua bilangan tersebut :
Selisih = Bil. Besar - Bil. Kecil
Selisih = 15 - 14
Selisih = 1 ..... ✔️
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