Question

Bab Polinomial sulit banget.

Answer 1

Verified answer

Kelas 11 Matematika
Bab Suku Banyak

^ = pangkat

a] Dibagi (x - 1)
x - 1 = 0
x = 1

P(x) = 19 (x^21 - x^8 + 2) - 15 (x^17 - 4x^3 + 3)
P (1) = 19 . (1^21 - 1^8 + 2) - 15 (1^17 - 4 . 1^3 + 3)
P (1) = 19 (1 - 1 + 2) - 15 (1 - 4 . 1 + 3)
P (1) = 19 . 2 - 15 . 0
P (1) = 38

Sisa 38

b] x + 1 = 0
x = -1

P(x) = 19 (x^21 - x^8 + 2) - 15 (x^17 - 4x^3 + 3)
P (-1) = 19 . ((-1)^21 - (-1)^8 + 2) - 15 ((-1)^17 - 4 . (-1)^3 + 3)
P (-1) = 19 . (-1 + 1 + 2) - 15 (-1 + 4 + 3)
P (-1) = 19 . 2 - 15 . 6
P (-1) = 38 - 90
P (-1) = -52

Answer 2

Itu saya pkek cara horner

klau ada yg blm ngrti boleh ditanyakan

terimakasih