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Лучший способ изучить что-либо - это открыть самому. (Д. Пойа)
Лучший способ изучить что-либо - это открыть самому. (Д. Пойа)
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Это уравнение типа «произведение равно нулю». Произведение равно нулю, если хотя бы один из множителей равен нулю. Приравниваем к нулю каждый из множителей:
6x-7=0 или 5x+9=0 или 4x+11=0 или 9x-6=0
6x=7 5x=-9 4x=-11 9x=6
x=7/6 x=-9/5 x=-11/4 x=6/9
В первом уравнении получили неправильную дробь. Выделяем из нее целую часть. Во втором и третьем уравнении ответ записываем в виде десятичной дроби. Для этого делим числитель на знаменатель уголком. В четвертом уравнении нужно сократить дробь в ответе
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| вариант 1
| вариант 2
| вариант 3
| вариант 4
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| 1. (х – 3)(х – 7=0
2. (х + 3)(х – 6) =0
3. (х + 6)(х + 2) =0
4. (х + 8)(7х – 1) =0
5. (3х + 10)(4х + 5) =0
| 1. (х – 1)(х – 4) =0
2. (х + 1)(х – 5) =0
3. (х + 10)(х + 2) =0
4. (3х + 5)(х + 11) =0
5. (3х + 8)(8х – 3) =0
| 1. (х – 4)(х – 11) =0
2. (х + 11)(х – 5) =0
3. (х + 8)(х + 4) =0
4. (х – 5)(6х – 1) =0
5. (3х + 4)(3х – 10) =0
| 1. (х – 2)(х – 9) =0
2. (х + 8)(х – 1) =0
3. (х + 11)(х + 3) =0
4. (5х + 6)(х – 3) =0
5. (5х – 2)(5х – 8) =0
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| вариант 5
| вариант 6
| вариант 7
| вариант 8
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| 1. (х – 5)(х – 6) =0
2. (х + 6)(х – 1) =0
3. (х + 9)(х + 4) =0
4. (3х – 4)(х – 8) =0
5. (5х + 3)(7х – 6) =0
| 1. (х – 2)(х – 4) =0
2. (х + 2)(х – 5) =0
3. (х + 3)(х + 1) =0
4. (х + 10)(7х + 2) =0
5. (6х – 1)(4х – 5) =0
| 1. (х – 3)(х – 9) =0
2. (х + 8)(х – 5) =0
3. (х + 5)(х + 3) =0
4. (5х + 6)(х – 2) =0
5. (2х + 11)(2х + 5) =0
| 1. (х – 1)(х – 7) =0
2. (х + 7)(х – 4) =0
3. (х + 7)(х + 5) =0
4. (х – 3)(2х – 11) =0
5. (3х + 8)(7х – 1) =0
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| вариант 9
| вариант 10
| вариант 11
| вариант 12
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| 1. (х – 4)(х – 6) =0
2. (х + 10)(х – 5) =0
3. (х + 5)(х + 2) =0
4. (х + 7)(7х + 4) =0
5. (4х – 5)(6х – 7) =0
| 1. (х – 5)(х – 13) =0
2. (х + 3)(х – 8) =0
3. (х + 8)(х + 5) =0
4. (3х + 5)(х – 8) =0
5. (2х + 9)(3х + 4) =0
| 1. (х – 3)(х – 4) ≤0
2. (х + 4)(х – 10) ≥0
3. (х + 7)(х + 4) <0
4. (х – 1)(5х – 6) >0
5. (4х + 3)(2х – 1) =0
| 1. (х – 2)(х – 7)=0
2. (х + 2)(х – 8) =0
3. (х + 6)(х + 1) =0
4. (4х + 5)(х + 2) =0
5. (2х + 3)(4х – 5) =0
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| вариант 13
| вариант 14
| вариант 15
| вариант 16
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| 1. (х – 5)(х – 9) =0
2. (х + 5)(х – 7) =0
3. (х + 8)(х + 3) =0
4. (7х + 5)(х – 3) =0
5. (7х + 6)(2х + 1) =0
| 1. (х – 4)(х – 12) =0
2. (х + 4)(х – 9) =0
3. (х + 10)(х + 4) =0
4. (х + 3)(6х + 1) =0
5. (2х + 5)(5х – 2) =0
| 1. (х – 1)(х – 2) =0
2. (х + 1)(х – 3) =0
3. (х + 8)(х + 2) =0
4. (8х – 9)(х – 4) =0
5. (7х + 8)(4х + 5) =0
| 1. (х – 3)(х – 10) =0
2. (х + 3)(х – 5) =0
3. (х + 10)(х + 5) =0
4. (х + 5)(3х – 7) =0
5. (3х – 4)(6х – 7) =0
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| вариант 17
| вариант 18
| вариант 19
| вариант 20
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| 1. (х – 2)(х – 3) =0
2. (х + 3)(х – 11) =0
3. (х + 5)(х + 1) =0
4. (х – 8)(7х – 2) =0
5. (5х + 4)(3х – 8) =0
| 1. (х – 5)(х – 12) =0
2. (х + 2)(х – 6) =0
3. (х + 11)(х + 5) =0
4. (3х + 4)(х + 10) =0
5. (4х – 3)(2х – 11) =0
| 1. (х – 4)(х – 5) =0
2. (х + 10)(х – 2) =0
3. (х + 8)(х + 1) =0
4. (х + 3)(5х – 8) =0
5. (5х + 6)(3х + 2) =0
| 1. (х – 1)(х – 9) =0
2. (х + 4)(х – 8) =0
3. (х + 6)(х + 3) =0
4. (3х – 10)(х – 5) =0
5. (3х + 2)(3х – 10) =0
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| вариант 21
| вариант 22
| вариант 23
| вариант 24
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| 1. (х – 1)(х – 3) =0
2. (х + 3)(х – 4) =0
3. (х + 7)(х + 2) =0
4. (2х + 13)(х + 5) =0
5. (9х + 2)(3х – 1) =0
| 1. (х – 3)(х – 5) =0
2. (х + 7)(х – 2) =0
3. (х + 6)(х + 4) =0
4. (х + 4)(5х – 6) =0
5. (2х – 3)(3х – 10) =0
| 1. (х – 5)(х – 7) =0
2. (х + 4)(х – 6) =0
3. (х + 13)(х + 5) =0
4. (5х – 2)(х – 7) =0
5. (2х + 9)(4х + 5) =0
| 1. (х – 4)(х – 9) =0
2. (х + 13)(х – 5) =0
3. (х + 4)(х + 3) =0
4. (х + 3)(7х + 4) =0
5. (3х – 4)(5х – 12) =0
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| вариант 25
| вариант 26
| вариант 27
| вариант 28
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| 1. (х – 2)(х – 10) =0
2. (х + 2)(х – 3) =0
3. (х + 7)(х + 1) =0
4. (х + 5)(5х – 6) =0
5. (5х + 4)(4х + 3) =0
| 1. (х – 4)(х – 8) =0
2. (х + 3)(х – 2) =0
3. (х + 6)(х + 5) =0
4. (9х + 2)(х + 4) =0
5. (3х + 7)(5х – 2) =0
| 1. (х – 3)(х – 11) =0
2. (х + 12)(х – 5) =0
3. (х + 4)(х + 2) =0
4. (х – 3)(4х – 9) =0
5. (5х + 6)(3х – 4) =0
| 1. (х – 2)(х – 6) =0
2. (х + 1)(х – 9) =0
3. (х + 9)(х + 3) =0
4. (5х + 7)(х – 1) =0
5. (2х – 5)(2х – 13) =0
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| вариант 29
| вариант 30
| вариант 31
| вариант 32
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| 1. (х – 5)(х – 11)=0
2. (х + 2)(х – 1) =0
3. (х + 9)(х + 1) =0
4. (6х – 1)(х – 4) =0
5. (2х + 11)(3х – 4) =0
| 1. (х – 1)(х – 8) =0
2. (х + 10)(х – 3) =0
3. (х + 3)(х + 2) =0
4. (х + 7)(5х + 3) =0
5. (3х – 2)(4х – 9) =0
| 1. (х – 3)(х – 6) =0
2. (х + 9)(х – 5) =0
3. (х + 12)(х + 5) =0
4. (3х + 2)(х – 9) =0
5. (2х + 7)(5х + 3) =0
| 1. (х – 1)(х – 5) =0
2. (х + 12)(х – 4) =0
3. (х + 5)(х + 4) =0
4. (х – 4)(3х – 11) =0
5. (7х + 1)(3х – 4) =0
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| вариант 33
| вариант 34
| вариант 35
| вариант 36
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| 1. (х – 4)(х – 10) =0
2. (х + 4)(х – 11) =0
3. (х + 10)(х + 3) =0
4. (х + 5)(2х – 9) =0
5. (4х + 5)(3х + 4) =0
| 1. (х – 2)(х – 8) =0
2. (х + 2)(х – 9) =0
3. (х + 9)(х + 5) <0
4. (3х + 4)(х + 12) =0
5. (9х + 1)(8х – 9) =0
| 1. (х – 5)(х – 10) =0
2. (х + 7)(х – 3) =0
3. (х + 12)(х + 4) =0
4. (х – 2)(6х – 1) =0
5. (2х + 3)(3х – 2) =0
| 1. (х – 3)(х – 8) =0
2. (х + 4)(х – 1) =0
3. (х + 2)(х + 1) =0
4. (5х + 3)(х – 10) =0
5. (2х – 5)(5х – 12) =0
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| вариант 37
| вариант 38
| вариант 39
| вариант 40
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| 1. (х – 5)(х – 8) =0
2. (х + 3)(х – 9) =0
3. (х + 9)(х + 2) =0
4. (5х – 12)(х – 5) =0
5. (3х + 2)(3х – 4) =0
| 1. (х – 4)(х – 7) =0
2. (х + 1)(х – 7) =0
3. (х + 7)(х + 3) =0
4. (х + 3)(5х + 2) =0
5. (2х – 3)(2х – 9) =0
| 1. (х – 1)(х – 6) =0
2. (х + 6)(х – 5) =0
3. (х + 4)(х + 1) =0
4. (7х + 9)(х – 1) =0
5. (3х + 7)(4х + 1) =0
| 1. (х – 2)(х – 5) =0
2. (х + 2)(х – 4) =0
3. (х + 11)(х + 4) =0
4. (х – 4)(3х – 5) =0
5. (2х + 5)(5х – 6) =0
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