Задание
Развернуть задание
Раскрыть скобки:
1) a + (b – (c – d))
2) a – (b – (c – d))
3) a – ((b – c) – d)
4) a – (b + (c – (d – k)))
1) a + (b – (c – d))
2) a – (b – (c – d))
3) a – ((b – c) – d)
4) a – (b + (c – (d – k)))
Развернуть задание
Новое решение
Решение
1) a + (b – (c – d)) = a + b – (c – d) = a + b – c + d
2) a – (b – (c – d)) = a – b + (c – d) = = a – b + c – d
3) a – ((b – c) – d) = a – (b – c) + d = a – b + c + d
4) a – (b + (c – (d – k))) = a – b – (c – (d – k)) = a – b – c + (d – k) = a – b – c + d - k
2) a – (b – (c – d)) = a – b + (c – d) = = a – b + c – d
3) a – ((b – c) – d) = a – (b – c) + d = a – b + c + d
4) a – (b + (c – (d – k))) = a – b – (c – (d – k)) = a – b – c + (d – k) = a – b – c + d - k
1) a + (b – (c – d)) = a + b – (c – d) = a + b – c + d
2) a – (b – (c – d)) = a – b + (c – d) = = a – b + c – d
3) a – ((b – c) – d) = a – (b – c) + d = a – b + c + d
4) a – (b + (c – (d – k))) = a – b – (c – (d – k)) = a – b – c + (d – k) = a – b – c + d - k
2) a – (b – (c – d)) = a – b + (c – d) = = a – b + c – d
3) a – ((b – c) – d) = a – (b – c) + d = a – b + c + d
4) a – (b + (c – (d – k))) = a – b – (c – (d – k)) = a – b – c + (d – k) = a – b – c + d - k