Question

Minta tolong bantu jawaban dan caranya​

Answer 1

Polinom Derajat Empat

x + 2 = 0

x = -2

substitusikan x = -2 ke persamaan

x⁴ + x³ - (p + 6)x² - 9x + 18 = 0

(-2)⁴ + (-2)³ - (p + 6)(-2)² - 9(-2) + 18 = 0

16 - 8 - 4(p + 6) + 18 + 18 = 0

44 - 4(p + 6) = 0

4(p + 6) = 44

p + 6 = 44/4

p = 11 - 6

p = 5