Răspuns:
Explicație pas cu pas:
(x - 5)(y + 1) = 2*3 = 6
6 = 1*6 = -1*-6 = 2*3 = -2*-3 = 6*1 = -6*-1 = 3*2 = -3*-2
x - 5 = 1; x = 6
y + 1 = 6; y = 5
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x - 5 = -1; x = 4
y + 1 = -6; y = -7
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x - 5 = 2; x = 7
y + 1 = 3; y = 2
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x - 5 = -2; x = 3
y + 1 = -3; y = -4
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x - 5 = 6 ; x = 11
y + 1 = 1; y = 0
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x - 5 = -6; x = -1
y + 1 = -1; y = -2
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x - 5 = 3; x = 8
y + 1 = 2; y = 1
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x - 5 = -3; x = 2
y + 1 = -2; y = -3