Question

упростите
5(2-3d)-3(2d-3)
-3(6-2а)+7(3a-1)
4(7a-4)-9(2a-1)
40 баллов

Answer 1

Ответ:

10-15d-6d+9=19-21d

-18+6a+21a-7=-25+27a

28a-16-18a+9=10a-7

Answer 2

1

$5(2 - 3d) - 3(2d - 3) = 10 - 15d - 6d + 9 = 19 - 21d$

2

$- 3(6 - 2a) + 7(3a - 1) = - 18 + 6a + 21a - 7 = - 25 + 27a$

3

$4(7a - 4) - 9(2a - 1) = 28a - 16 - 18a + 9 = 10a - 7$