РЕшите срочно !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! и быстро даю 20 баллов

Question

РЕшите срочно !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! и быстро даю 20 баллов

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Answer 1

5.

3a^ - 3ab + 2ab - b^ = 3a^ - b^ -ab

6.

3c^ - 6c - (c^ - 6c + 9)= 3c^ - 6c - c^ + 6c + 9 = 2с^ + 9

Comments

7.

(3+2x)^