Question

Persamaan kuadrat yang akar akarnya 5 dan -1/2 adalah..

Answer 1

Verified answer

Jawab

misal a = 5
b = -1/2

persamaan kuadrat  x²  - (a +b) x + ab =0
x² - (5 - 1/2)x  + (5)(-1/2) =0
x² - 9/2 x - 5/2 = 0 ....kalikan 2
2x² - 9x - 5 = 0