Question

Tolong bantu jwb dong.. mksh..
TENTUKAN f(x)-g(x) , f(x) x g(x) , f(x) : g(x)
1. f(x)= (x +8) dan g(x)= (x^2-2x+1)
2.f(x)=(x^2+2x-24) dan g(x)=(x^2+7x+6)

Answer 1

Verified answer

Tentungan

f(x) + g(x)

f(x) * g(x)

f(x) ÷ g(x)

Pembahasan

1. f(x) = x + 8 dan g(x) = x² - 2x + 1

f(x) + g(x) = x + 8 + x² - 2x + 1 = x² - x + 9

f(x) * g(x) = (x + 8) (x² - 2x + 1) = x³ - 2x² + x + 8x² - 16x + 8 = x³ + 6x² - 15x + 8

f(x) ÷ g(x) =  (x + 8) / (x² - 2x + 1)

2. f(x) = x² + 2x - 24 dan g(x) = x² + 7x + 6

f(x) + g(x) = x² + 2x - 24 + x² + 7x + 6 = 2x² + 9x - 18

f(x) * g(x) = ( x² + 2x - 24) (x² + 7x + 6) = x^4 + 7x³ + 6x² + 2x³ + 14x² + 12x - 24x² - 168x - 144 = x^4 + 9x³ - 4x² - 156x - 144

f(x) ÷ g(x) = (x² + 2x - 24) ÷ (x² + 7x + 6) = (x + 6) (x - 4) ÷ (x + 6) (x + 1) = (x - 4) / (x + 1)

Pelajari lebih lanjut

Materi Fungsi : brainly.co.id/tugas/1386195

Detil jawaban

Kelas : 10 SMA

Mapel : Matematika

Bab : Fungsi

Kode : 10.2.3

Kata kunci : fungsi, penjumlahan fungsi, aljabar