Предмет: Математика, автор: 964534n

помгите пожалуйста,очень срочно надо

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Автор ответа: Pelmeshka83

1

Ответ:

$1)( \frac{3}{5} m - 2) \times 0.5 = \frac{3}{10} m - 1 = 0.3m - 1 \\ 2) {(a - 2)}^{2} - (a - 3)(a + 3) = {a}^{2} - 4a + 4 - {a}^{2} + 9 = 13 - 4a$

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