Matematika Sekolah Menengah Pertama Q.



f(x) = 90x - 5x × 3x - x^3 + x!
f(5) = ..



Skip 5 poin v:​

Q.



f(x) = 90x - 5x × 3x - x^3 + x!
f(5) = ..



Skip 5 poin v:​

Pembahasan :

f(x) = 90x - 5x × 3x - x^3 + x!

f(5) = ..

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f(x) = 90x - 5x × 3x - x^3 + x!

f(5) = 90(5) - 5(5) × 3(5) - 5³ + 5!

f(5) = (90 × 5) - (5 × 5) × (3 × 5) - (5 × 5 × 5) + (5 × 4 × 3 × 2 × 1)

f(5) = (90 + 90 + 90 + 90 + 90) - (5 + 5 + 5 + 5 + 5) × (3 + 3 + 3 + 3 + 3) - (25 × 5) + (20 × 3 × 2 × 1)

f(5) = (180 + 90 + 90 + 90) - (10 + 5 + 5 + 5) × (6 + 3 + 3 + 3) - 125 + (60 × 2 × 1)

f(5) = (270 + 90 + 90) - (15 + 5 + 5) × (9 + 3 + 3) - 125 + (120 × 1)

f(5) = (350 + 90) - (20 + 5) × (12 + 3) - 125 + 120

f(5) = 450 - 25 × 15 - 125 + 120

f(5) = 450 - 375 - 125 + 120

f(5) = 75 - 125 + 120

f(5) = -50 + 120

f(5) = 120 - 50

f(5) = 70

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Penjelasan dengan langkah-langkah:

f(x) = 90x - 5x × 3x - x^3 + x!

f(5) = 90(5) - 5(5) × 3(5) - 5³ + 5!

f(5) = 450 - 25 × 15 - (5 × 5 × 5) + (5 × 4 × 3 × 2 × 1)

f(5) = 450 - 375 - 125 + 120

f(5) = 75 - 125 + 120

f(5) = -50 + 120

f(5) = 120 - 50

f(5) = 70

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.•: Detail Jawaban

  • Mapel : Matematika
  • Kelas : VIII
  • Materi : Fungsi Aljabar
  • Kode Soal : 2
  • Kode Kategorasi : -
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