Question

mam obliczyć 3 przykłady: 1.(2x-3) (x+5) -2(x+1) (x+3)= dla x = -3,53(x-4) (x-1) - (2x+3) (2-x)= dla x = 1/2[-4(x do kwadratu- 10x-7) + (2x-3) (3x-2)] (2x-1)= dla x= -1

a to z angielskiego bardzo proszę o pomoc::

korzystając z zadania 5/35 podręcznik english plus 3 mam napisać komentarz

oto zad 5

A.TASK

write a comment with your opinion about the discussion topic in the model text.

B.THINK AND PLAN

1.How often do you use the internet and how long do you spend online at a time?

2.How do you use the internet?

3.Do you know anyone who uses the internet a lo? Has this had bad consequences?

4.Do you know people who are obsessive about other activities? What activities?

5.Do you think that the internet is more or less addictive than TV or other activities? Why/Why not?

6.What can people do if they're using the internet too much?

C.WRITE

Paragraph 1 : Write about your internet use

I go on the internet....

Paragraph 2 : Describe your online habits

My main activity on the internet is...

Paragraph 3 : Describe other people's habits

Some of my friends are....

Paragraph 4 : Conclusion

In conclusion,...

tak jak mówiłam wcześniej mam napisać komentarz na 100 słów, bez skrótów czyli jak ma być its to trzeba napisać it is

bardzo proszę o pomoc

ja to potrzebuje na dzsiaj jeszcze

Answer 1

Przypuścmy że ^ oznacza do kwadratu.

 

1.2x^+10x+3x+15-2x-2=

25+35+10,5+15-7-2=76,5

 

2.3x-12+3x-3-2x-3+2-x=

1.5-12+1.5-3-1-3+2-0.5=-11

 

3.-4x^+40x^+28+6x^-4x-9x+6+2x-1=

-4+40+28+6+4+9+6+2-1=100