Question

Tolong no 15 ya!!terima kasih.mohon bantuannya.

Answer 1

F(x) = 3x² - 4x + 6
g(x) = 2x - 1
(f o g)(x) = 101
f(2x - 1) = 101
3(2x - 1)² - 4(2x - 1) + 6 = 101
3(4x² - 4x + 1) - 8x + 4 + 6 - 101 = 0
12x² - 12x + 3 - 8x - 91 = 0
12x² - 20x - 88 = 0
3x² - 5x - 22 = 0
(3x - 11)(x + 2) = 0
x = - 2 atau x = 3 2/3
Jawaban: A