Question

Спростіть вираз! Помогите пж!!!!!!!!!!!!!!!!!

Answer 1

$\frac{m - \frac{14m - 49}{m} }{ \frac{7}{m} - 1 } = \frac{ \frac{ {m}^{2} - 14m + 49}{m} }{ \frac{7 - m}{m} } = \\ = \frac{ {(m - 7)}^{2} }{m} \times \frac{m}{7 - m} = \\ = \frac{ {(m - 7)}^{2} }{m} \times \frac{m}{ - (m - 7)} = \\ = -( m - 7) = 7 - m$