Question

Помогите решить!!!!!!!!!!!!!!!!!

Answer 1

$\frac{a {}^{2} - 16 }{ {2a}^{2} + 8a } = \frac{(a - 4)(a + 4)}{2a(a + 4)} = \frac{a - 4}{2a} \\ \\ a = - 0.2 \\ \\ \frac{ - 0.2 - 4}{ - 0.2 \times 2} = \frac{ - 4.2}{ - 0.4} = 10.5$