Baca tanpa iklan
= 49
Selesaian
x = -b +- \/D : 2a
= -5 +- \/49 : 2(2)
= 5 +- 7 : 4
= 5 + 7 / 4 atau 5 - 7 / 4
x = 3 atau x = - 1/2
x = {–1/2, 3}
BERITA REKOMENDASI
Kolom nomor 4
x² – 4 = 0, Maka:
a = 1
b = 0
c = –4
D = b² – 4ac
= 0² – 4(1)(–4)
= 0 + 16