diketahui fx=x3+x3+(a-2)x+4 dengan x-1 memberikan sisa 10 hitunglah nilai a dan hasil baginya

x - 1 = 0
x = 1

f(x) = x³ + x² + (a - 2)x + 4

f(1) = 10
1³ + 1² + (a - 2)1 + 4 = 10
a + 4 = 10
a = 10 - 4
a = 6


f(x) = x³ + x² + 4x + 4

.......1......1......4......4
1
..............1......2.......6__(+)
.......1.....2......6......10


hasil bagi = x² + 2x + 6
sisa bagi = 10