Matematika Sekolah Menengah Atas 4. Diketahui : f(x) = x – 3 g(x) = 2x2 – 6xb(x) = x2 – 9m(x) = 2x2 – x – 15 m(x) – g(x) = … . A. 5x + 15 B. -7x – 15 C. 5(x – 15) D. 5x(x – 3) E. 5(x – 3)​

kaitlinbuckridgeulv – April 11, 2023

4. Diketahui :

f(x) = x – 3

g(x) = 2x2 – 6x

b(x) = x2 – 9

m(x) = 2x2 – x – 15



m(x) – g(x) = … .

A. 5x + 15

B. -7x – 15

C. 5(x – 15)

D. 5x(x – 3)

E. 5(x – 3)

​

Jawaban:

5 (x - 3)

Penjelasan dengan langkah-langkah:

[tex]m (x) = 2 {x}^{2} -x -15 [/tex]

[tex]g(x) = 2 {x}^{2} -6x [/tex]

[tex]m (x) - g(x) = 2 {x}^{2} -x-15 - (2 {x}^{2} - 6x ) [/tex]

[tex]m (x) - g(x) = 2 {x}^{2} -x-15 - 2 {x}^{2} + 6x [/tex]

[tex]m (x) - g(x) = -x-15 + 6x [/tex]

[tex]m (x) - g(x) = 5x - 15[/tex]

[tex]m (x) - g(x) = 5 (x - 3)[/tex]

Jadikan jawaban tercerdas jika ini membantu. trimakasih

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