Question

Suku banyak habis dibagi . Nilai A + B = ...

Answer 1

F(x) = x³ + Ax² + Bx - 6

x² - 3x + 2 = 0
(x - 1)(x - 2) = 0
x = 1  v  x = 2

f(1) = 1³ + A.1² + B.1 - 6
0 = A + B - 6 ..........1
f(2) = 2³ + A.2² + B.2 - 6
0 = 8 + 4A + 2B - 6
0 = 4A + 2B + 2.......2
dari eliminasi 1 dan 2 didapat A = -7, B = 13
A + B = -7 + 13 = 6

mohon koreksi lagi..semoga membantu..