Question

Tentukan akar-akar persamaan kuadrat dengan cara Memfaktorkan :
a.X ² - 8x = 0
b.16p ² - 36 = 0
c.X ² - 15x + 56 = 0
d.4m ² + 12m + 5 = 0
mohon bantuannya ..tlg tulis cara kerja'y jg y

Answer 1

X² - 8x = 0
x(x - 8) = 0
x = 0 dan x = 8
16p² - 36 = 0
(4p - 6)(4p + 6) = 0
p = 3/2 dan p = -3/2
x² - 15x + 56 = 0
(x - 8)(x - 7) = 0
x = 8 dan x = 7
4m² + 12m + 5 = 0
(2m + 1)(2m + 5) = 0
m = -1/2 dan m = -5/2