Question

Ada yang bisa bantu???​

Answer 1

Jawab: B. 3

Penjelasan dengan langkah-langkah:

2(x+4) = (x+3)(x+6)

2x + 8 = x^2 + 9x + 18

0 = x^2 + 7x + 10

0 = (x+5) (x+2)

x1 = -2 > x2 = -5

x1-x2 = -2 - (-5) = -2 + 5 = 3

Answer 2

2 (x + 4) = (x + 3) (x + 6)

2x + 8 = x^2 + 9x + 18

2x + 8 - x^2 - 9x - 18 = 0

-x^2 - 7x - 10 = 0 dikali (-)

x^2 + 7x + 10 = 0

(x + 2) (x + 5) = 0

untuk (x + 2)

x + 2 = 0

x = -2

untuk (x + 5)

x + 5 = 0

x = -5

~~

karena x1 > x2

maka : x1 = -2 dan x2 = -5

x1 - x2 = -2 - (-5) = -2 + 5 = 3

jawaban : B

semoga membantu