ա) x — 1/x + 2 = 0
x — 1 — 2x/x — 1 = 0
3x -1/x = 0 Թ․Ա․Բ՝ x ≠ 0
3x — 1 = 0
3x = 1
բ) 1 — 2x/x — 1 = 0
x — 1 — 2x/x — 1 = 0
-1 — x/x — 1 = 0 Թ․ԱԲ․՝ x — 1 ≠0
-1 — x = 0
-x = 1
x = -1
Պատ․՝ -1
գ) k + 3/k = 4
k + 3/4 — 4/1 = 0
k + 3 — 4k/k = 0 Թ․Ա․Բ՝ k ≠ 0
-3k + 3 = 0
-3k = -3
k = 1
Պատ․՝ 1
դ) 2 = y/y — 5
2 — y/y — 5 = 0
2y — 10 — y/y — 5 = 0 Թ․Ա․Բ՝ y — 5 ≠ 0
2y — 10 — y = 0
y — 10 = 0
y = 10
Պատ․՝ 10
ե) 3/m — m/3
3/m — m/3 = 0
9 — m2/3m = 0 Թ․Ա․Բ՝ 3m ≠ 0
9 — m2 = 0
— m2 = -9
m2 = 9
m = 3
[m = 3
[m = -3
Պատ․՝ 3; -3
զ) 4/x — 1 = x/5
4/x — 1 — x/5 = 0
20 — x2 + x/5(x — 1) = 0…………Թ․Ա․Բ՝ 5(x — 1) ≠ 0
20 — x2 + x = 0
-x2 + x + 20 = 0
[x1 = -b — √D/2a = -1 — 9/2 = -10/-2 = 5
[x2 = -b + √D/2a = -1 + 9/-2 = 8/-2 = -4
Պատ․՝ 5; -4
է) x — 9/x = 0
x2 — 9/x = 0 Թ․Ա․Բ՝ x ≠ 0
x2 — 9 = 0
x2 = 9
x = 3
[x = 3
[x = -3
Պատ․՝ 3; -3
Հրանտ Ավետիսյան 