Question

1) 6x² = 5x + 1;
3) x(x - 1)=72;
5) 2x(x + 2) = 8x + 3;
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Answer 1

Ответ:

1)36х=5х+1

36х-5х=1

31х=1

х=31

3)х-х=72

0=72

5)2х+4х=8х+3

2х+4х-8х=3

-2х=3

х=- 1,5