Предмет: Алгебра, автор: irasoll1997

Спростити вираз (с+3) ²+(с-7)

Ответы

Автор ответа: mithridat

Ответ:

$c^2 + 7c + 2$

Объяснение:

$(c + 3)^2 + (c - 7) = c^2 + 6c + 9 + c - 7 = c^2 + 7c + 2$

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I.     1.There … many
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work on time. a)finish, b)finishing,
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II.    1…. with a drunk driver … dangerous. a)ride, is; b)to ride, are; c)ride, are; d)to
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           2.He … very pleasant to
deal with. a)have, b)has, c)are0 d)is.

III.     1.One of my friends … here. a)is, b)are,
c)has, d)have.

           2.The United States … a
population of 250 million people. a)is, b)have, c)are, d)has.

2,Выберите
правильную форму глагола:

    I.    1.Terry … my car when he had the accident.
a)was driving; b)drives; c)is driving; d)drove.

           2.Tomorrow at this
time, I … classes. a)will have attended;
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be attending. 3.I … here for two years. a)lived; b)have lived; c)had

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bedroom window and … me up. a)is shining, is waking; b)is shining,

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wakes; d)shines, is waking.

III.    1.She … the film on
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3.They … each other since 1998. a)know,
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spoken, c)speaks, d)spoke. 2.Children … by

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