September 2018 1 14 Report

Zredukuj wtrazy podobne i oblicz wartości wyrażeń podobnych zmienych :

Daje Naj !!

Do kwadratu oznaczam gwiwazdką "*" a do sześcianu "^"

zad 1

a) 3x-5-2x+2-5x-4 dla x=-3

b) 2x*-4x+7+2x*-5x-8 dla x=-1

c)4a+3b-2-6a+b-3 dla a= -2 dla b=-1

d) -3a-b+4+4a-b-6 dla a =3 b=0 (zero)

e)-3a+2b-4c+2a-3b-c dlaa=-3 b= 1 ,c=2

f) a+4b+2c+3a-6b-c dlaa= -2 b=3 c=10

zad 2 - Wprowadź wyrażenie do najprostszej postaci i oblicz ich wartości liczbową dla innych zmiennych :

a) (2a-3b+1)-(3a+2b-4)-(a-6b+2) dla a=-3,b=-5

b) -(3a-2b-3c)+(5a-4b+4c)-(a-5b-c) dla a= -6 b=3 c=-1

c) (2x*+3x-5)-3x*-5x+8) dla x=3

d) -(3-2x+4x*)+1-3x-6x*) dla x -3

e) -(2x-x*)-[2-3x-(2x*-3x+4)] dla x= - 1/2 (minus jedna druga)

f)3-[-(2x-3x*)+(1-3x+x*)]+4x* dla x= -0,3

W tym drugim zadaniu chodzi o zmiane znaku jak przenosimy i jak opuszczamy nawiasy trzeba zrobić te działańia bez nawiasów ! :( proszę o pomoc Daje nadj !!


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Przeczytaj notatki i uzupełnij wywiad poniżej -> klasa 1gimnazjum treść zadanie jest napisane zadanie 3 str 44 up Beat 2 pomożesz ? DAJE NAJ !:) Interview with Donna Fisher- notes 6:00-6,45-Restaurant;Donna-fish, friends, chicken 6:45-7:00-Walk to cinema. 7:00-8,45-Watch 'The Duchess’. Very good! 8:45 Go to club. 9:00-11:00 At club. Donna-dance, Louisa- talk to Americans, Kelly - read a book 11:00 Phone her dad 11:15 Dad arrived-took Donna, Kelly and Louisa home. 11:45 In bed. 12:00 Asleep! A Saturday with Donna Fisher Last Saturday, I met the teenage singer Donna Fisher.I asked her some quesrions and made notes- here is my interview. Me; Donna, can I ask you about your evening yesterday? Donna: of course. Me; What were you doing at 6,15? Donna; I was with my friends. We were eating in a restaurant. I had fish and my friends had chicken. Me;Where _________ to at 6.50? Donna; We ___________.We got there at about 7.00. Me;What ________ at 8,00. Donna; We ________ The Duchess. It was a very good film. It finshed at about 8.45. Then we went to a club. Me;What _________ at the club? Danna: I __________,my friend Louisa _________ to some Americans and my other friend, Kelly, _____________. She doesn’t like clubs! Me: Were you dancimg at 11.00? Danna: No, I ________,_______. I ___________ on the phone. Me; Who __________ to? Donna: My dad. I asked him to come and take us home. Me; What ____________ at midnight? Donna:I___________.I went to bead on 11,45. I was very tired!
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