Предмет: Алгебра, автор: sho63

Умоляю,помогите!10 балов​

Приложения:

sho63: Фото криво обрезало приложение,я создал новый опрос

Ответы

Автор ответа: Mirage86
2

I hope this helps you

Приложения:

stas1geo55: please forgive me I do not understand.
Mirage86: there's no incorrect answer i wrote two different way one of them longest and the other one is shortest way
Mirage86: I hope you understand me now :/
stas1geo55: Yes, I realize that he was wrong well,fool, once again apologize.
stas1geo55: Yes of course I understand
Mirage86: Holly :D don't use rude argument please and I'm glad you understanding
stas1geo55: I mean I'm a fool
stas1geo55: and in no case do not want to offend You
Mirage86: I know but we can't see clearly in sometimes so don't injustice to yourself Pal
stas1geo55: okay
Автор ответа: stas1geo55
1

а) (-m-n)²=(-m)²-2(-m)n+n²=m²+2mn+n²

б) (-b+5)²=(5-b)²=25-10b+b²=b²-10b+25

г) (-4с-3d)²=(-4c)²-2(-4)c•3d+(3d)²=16c²+24cd+9d²

д) (-k-1,5)²=(-k-3/2)²=k²+3k+9/4=k²+3k+2,25

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