Question

Помогиииитеееееееееее
Если можно с подробным ответом.

Answer 1

$\frac{c - 3}{ {c}^{2} } \div \frac{c - 3}{ {c}^{2} + 2c} = \frac{c - 3}{ {c}^{2} } \times \frac{ {c}^{2} + 2c }{c - 3} = \frac{c(c + 2)}{ {c}^{2} } = \frac{c + 2}{c} = \frac{0.4 + 2}{0.4} = \frac{2.4}{0.4} = 6$