Diketahui persamaan kuadrat :
2x^2-3x-9=0
Tentukan:
x1^4+x2^4
2x^2-3x-9=0
(2x+3) (x-3)=0
2x=-3 v x=3
x=-3/2
nilai x1^4+x2^4= (-3/2)^4 + (3)^4 = 81/24 + 81 =2025/24 =84,375
Diketahui persamaan kuadrat :
2x^2-3x-9=0
Tentukan:
x1^4+x2^4
2x^2-3x-9=0
(2x+3) (x-3)=0
2x=-3 v x=3
x=-3/2
nilai x1^4+x2^4= (-3/2)^4 + (3)^4 = 81/24 + 81 =2025/24 =84,375