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Verified answer
Z=0 atau z+1=0 atau 2z-1=0z=-1 2z=1
z=1/2
z(z + 1)(2z - 1) = 0
Untuk menghasilkan 0 , maka salah satu faktor dr perkaliannya haruslah bernilai 0.
maka :
z= 0
z + 1 = 0
z = -1
2z - 1 = 0
2z = 1
z = 1/2
Hp = { -1 , 0 , 1/2 }