Question

Akar akar ersamaan 5xkuadrat - 3x + 25 = 0 ialah alfa dan beta. Nilai alfa kuadrat beta + alfa beta kuadrat =......mhon bantuannya ya..

Answer 1

5x² - 3x + 25. ---> a=5,  b= -3, c =25
α+β = -b/a
α x β = c/a
α²β +αβ² = αβ(α + β)
(25/5)(-(-3)/5 ) = 5 x 3/5
= 3