ա․ x∈ {1; 2}
բ․ x∈ {-4; 2}
գ․ x = 7
դ․ x∈ {-4; 6}
ե․ x∈ {0; 2}
զ․ x∈ {-3; 0}
է․ x = 0
ը․ x∈ {-3; 0}

ա․ x∈ {0; 1.5}
բ․ x∈ {0; 7/5}
գ․ x∈ {-1; 0}
դ․ x = 1
ե․ x = -1
զ․ x = 2
է․ x = 5
ը․ x = 1

ա․ x∈ {-3, -2, 0}
բ․ x∈ {0; 1; 3}
գ․ x∈ {-1, 0 , 3}
դ․ x∈ {-2; 0; 5}
ե․ x∈ {2-√5, 0 , 2+√5}
զ․ x = 0
է․ x = 0
ը․ x∈ {-3; 0; 3}