X2 kurang 1 =0tentukan dengan cara rumus kuadratis
x² -1 = 0
a = 1
b = 0
c = -1
Rumus : -b ± √b² -4ac /2a
-0 ± √0²-4(1)(-1) /2(1)
-0 ± √0+4 /2
-0 ± √4 /2
0 ± 2 /2
x1 = 0+2/2 = 1
x2 = 0 -2/2 = -1
Maaf kalo salah
X2 kurang 1 =0tentukan dengan cara rumus kuadratis
x² -1 = 0
a = 1
b = 0
c = -1
Rumus : -b ± √b² -4ac /2a
-0 ± √0²-4(1)(-1) /2(1)
-0 ± √0+4 /2
-0 ± √4 /2
0 ± 2 /2
x1 = 0+2/2 = 1
x2 = 0 -2/2 = -1
Maaf kalo salah