Question

Помогите пожалуйста, даю 50баллов​

Answer 1

При x = -1/2

$2 \times (-\frac{1}{2}) + \frac{8}{-\frac{1}{2}+1} = -\frac{1\times 2}{2} + \frac{8}{1-\frac{1}{2}} = -1 + \frac{8}{\frac{2-1}{2}} = -1 + \frac{8}{\frac{1}{2}} = -1 + \frac{8\times 2}{1} = -1 + 16 = 15$

При x = 0,5

$2 \times 0,5 + \frac{8}{0,5+1} = 1 + \frac{8}{1,5} = 1 + \frac{8}{\frac{3}{2}} = 1 + \frac{8\times 2}{3} = 1 + \frac{16}{3} = \frac{16+3}{3} = \frac{19}{3} = 6\frac{1}{3}$

При x = 1

$2 \times 1 + \frac{8}{1+1} = 2 + \frac{8}{2} = 2 + 4 = 6$

При x = 3

$2 \times 3 + \frac{8}{3+1} = 6 + \frac{8}{4} = 6 + 2 = 8$