

SOAL LATIHAN
Presentation
•
Mathematics
•
11th Grade
•
Practice Problem
•
Easy
Suryani Bili
Used 1+ times
FREE Resource
3 Slides • 3 Questions
1
mata pelajaran : matematika
kelas : xi
2
3
Cara Mencari Nilai Suku Banyak
Nah, cara mencari nilai suku banyak bisa dilakukan dengan cara substitusi atau cara Horner.
Cara Substitusi
Untuk cara ini, pasti kamu sudah mengerti, kan? Itu loh, mengganti variabel x dengan suatu bilangan yang diketahui. Contohnya:
1. Tentukan nilai suku banyak untuk x = 3, jika diketahui f(x) = 4x3 – 2x2 + 9.
Pembahasan:
f(x) = 4x3 – 2x2 + 9 (substitusikan nilai 3 ke setiap x-nya)
f(3) = 4(3)3 – 2(3)2 + 9
f(3) = 4(27) – 18 + 9
f(3) = 108 – 9 = 99
Jadi, nilai suku banyak f(x) = 4x3 – 2x2 + 9 untuk x = 3 adalah 99.
4
Multiple Choice
2+5=....
1
4
7
9
5
Multiple Choice
10X + 15X =....
25X
10X
X
5X
6
Multiple Choice
30 PISANG + 10 PISANG =...
10 PISANG
40 PISANG
20 PISANG
7 PISANG
mata pelajaran : matematika
kelas : xi
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