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Kordamine 9.klass

Authored by Maris Toomik

Mathematics

9th Grade

Used 25+ times

Kordamine 9.klass
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24 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Lahenda peast ruutvõrrand x²-8x+15=0

3 ja 5
-3 ja 5
-5 ja -3
15 ja 1

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Media Image

Leia kaks niisugust arvu, mile summa on 13 ja korrutis 42

12 ja 1
7 ja 6
-7 ja 6
-6 ja -7

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Lahenda peast ruutvõrrand x²-7x-18=0

6 ja -3
-9 ja 2
18 ja -1
-2 ja 9

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Milline on ruutude vahe valem?

a2 - b2 = (a-b)(a+b)

a2 - b2 = (a+b)(a-b)

a2 - b2 = (a-b)(a-b)

a2 - b2 = (a-b)2

Ruutude vahe leidmiseks ei olegi valemit.

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Milline on ruutude summa valem?

a2 - b2 = (a-b)(a+b)

a2 + b2 = (a+b)(a-b)

a2 + b2 = (a-b)(a-b)

a2 + b2 = (a+b)2

Ruutude summa leidmiseks ei olegi valemit.

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Milline on summa ruudu valem?

a2 + b2 = (a+b)(a+b)

a2 + b2 = (a+b)(a+b)

a2 + b2 = (a-b)(a-b)

(a+b)2 = a2 + 2ab + b2

(a+b)2 = a2 + b2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Milline on vahe ruudu valem?

a2 - b2 = (a+b)(a+b)

a2 - b2 = (a+b)(a+b)

(a-b)2 = a2 - 2ab - b2

(a-b)2 = a2 - 2ab + b2

(a-b)2 = a2 - b2

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