Matematika Sekolah Menengah Atas 1. Diketahui : f(x) = x – 3 g(x) = 2x2 – 6xb(x) = x2 – 9m(x) = 2x2 – x – 15 g(x) – b(x) = … . A. x2 – 6x + 9 B. x2 – 6x – 9 C. 2x2 – 6x + 9 D. 2x2 – 6x – 9 E. 3x2 – 6x + 9​

kaitlinbuckridgeulv – April 11, 2023

1. Diketahui :

f(x) = x – 3

g(x) = 2x2 – 6x

b(x) = x2 – 9

m(x) = 2x2 – x – 15



g(x) – b(x) = … .

A. x2 – 6x + 9

B. x2 – 6x – 9

C. 2x2 – 6x + 9

D. 2x2 – 6x – 9

E. 3x2 – 6x + 9

​

Jawaban:

g(x) - b(x) = 2x²-6x - (x²-9)

= 2x²-6x-x²+9

= x²-6x+9

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