Предмет: Математика, автор: tarasenco098

Разложите на множители:
1) 3ах+4a
2)6x^2-3x
3)18x^4+12x^3
4)-a^7-5a^11-3a^6
5)8x^4y^2-12x^2y^3+4x^2y^2
6) ax+3ay+5x+15y
7)x^5+2x^4-x-2
8)ab-ac-a^2+bc

Ответы

Автор ответа: Hinamelin
0
a(3x+4)
3x(2x-1)
6x^3(3x+2)
-a^6(a+5a^3+3)
4x^2y^2(2^2-3^1,5+1)
x(a+5)+3y(a+5)=(x+3y)(a+5)
x^4(x+2)-(x+2)=(x^4-1)(x+2)
-c(a-b)-a(a-b)=(-c-a)(a-b)
Автор ответа: kratgv
0
4x^2y^2(2^2-3^1,5+1) ???
Автор ответа: kratgv
0
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She usually (drink)_____________ coffee, but today she ____________________ (drink) tea.

I’m busy at the moment. I (redecorate)_______________________________ the room.

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You always (write) with your left hand? _____________________________________

This car (make)__________________ a very strange noise. You (think) it is alright? _______________________________________

2. Раскройскобки, употребив Present Perfect/ Present Perfect Continuous.

I _____________________ (do) my homework recently.

He _________________________ (learn) the poem all the morning.

_______ you ever __________ (be) to France?

She _________________________________ (not/ donate) money yet.

You look fantastic! ____ you _________ (buy) a new dress?

We _________________________________ (write) the test for 2 hours!

Tom _________________________________ (clean) the house since morning.

How long ____________ you ________________ (study) English?

She _____ never __________ (taste) Italian food.

They _________________________________ (read) a book since Monday.

3. Put the adjectives in brackets into the correct form.

1. My sister is ____________( funny) and __________ (creative) person in the world.

2. Who is your _________ (good) friend.

3. Sally is three years _______(young) than me and she is ___________(sensible) person I know.

4. John is ________(selfish) in our family. Besides he is as _________(stubborn) as a mule.

5. I think that… (little) he could do is to give her some money.