Question

Minta tolong bantu jawaban dan caranya? ​

Answer 1

Verified answer

Jawab:

Suku banyak

Pembagian

Hasil Bagi

Sisa = nilai fungsi

Penjelasan dengan langkah-langkah:

i) f (x)  : (x² - 5x+ 6) , s(x) = 2x + 7

x² -5x + 6= 0

(x - 2)(x - 3) =0

x= 2 , x = 3

s(3) = 2(3) + 7

s(3)= 13

ii) f(x)  : (x² -4x - 5) , s(x) = 5x - 5

x² - 4x - 5= 0

(x +1)(x - 5) = 0

x = -  1  , x = 5

s(5) = 5(5) -6

s(5)= 19

iii) f(x)  : (x² -8x + 15),  s(x) = ax + b

(x² -8x + 15) = 0

(x - 3)(x - 5)= 0

x = 3 atau x = 5

.

s(3)=  13

s(5)=  19

(3-5)a = 13 -19

-2a =  -6

a = 3

b = 13 - 3a

a = 13 - 3(3)

a = 4

s(x)= 4x + 3