Предмет: Алгебра, автор: kkkkkk6

квадратное уравнение:3х (в квадрате) +18=0

Ответы

Автор ответа: mazyar1998olka
0
3х (в квадрате) +18=0

3х (в квадрате)=-18
х(в квадрате)=-18/3
х(в квадрате)=-6
уравнение не имееть решение поскольку (х(в квадрате) всегда больше 0)
х(в квадрате)>0;
-6<0

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1. Form past simple question (?).When / you / go / to bed?

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B)When did you went to bed?

C)When you did went to bed?





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C)Did you play volleyball yesterday?



3.Make the sentence negative (-) in the past simple. We had breakfast this morning.

A)We had didn’t breakfast this morning.

B)We didn’t have breakfast this morning.

C)We didn’t had breakfast this morning.



4. Make the sentence negative (-) in the past simple. She knew the answer to the question.

A)She didn’t know the answer to the question.

B)She didn’t knew the answer to the question.

C)She know didn’t the answer to the question. .



5.Complete the sentences. Use the verbs in brackets and write affirmative(+) sentences in the past simple. Amy (eat) a lot before she went to school.

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7.Write the past simple forms of these verbs.

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_______/7 points

TOTAL: ______/20 points





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