Question

Решить квадратные уравнения

1. 3х2 – 12 = 0

2. х2 + 7х = 0

3. 8х2 + 32 = 0

4. х2 + 3х – 4 = 0

5. х2- 7х + 10 = 0

6. 2х2 – 7х – 4 = 0

7. (х – 7)(х + 7) = 6х - 57

Answer 1

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© Rahmann