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