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Язык. нужна , вставить правильно слова​

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7) gave

8) are you been

9) never enjoyed

10) did you hear

11) was working

12) is doing

13) invented

(*´﹀`*)


6) have discovered

7) gave

8) have you been

9) have never enjoyed

10) did you hear

11) has been working

12) is doing

13) have invented


А)-2,4а^3b^2-0,9a^2b^3 б)3x^2-6ax-6a^2+6ax=3x^2-6a^2 в)3а^2-2а+1 а)7+4х-8-3х+3=0 х+2=0 х= -2 б)2х-21х+7=26 -19х=26-7 -19х=19 |÷(-19) х= -1 в)-4х+2=2 -4х=2-2 -4х=0 |÷(-4) х=0

Have you made tea  or coffee ? -yes,i have when did you last do it ? i did it in the morning

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