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Wzory skróconego mnożenia

Authored by iwona kołodziejczyk

Mathematics

9th Grade

Used 8+ times

Wzory skróconego mnożenia
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20 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

( 3x - 4)2 =

9x - 12x +8

9x2 - 24x + 16

9x2 + 12x + 16

9x2 + 24x + 16

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

( 6 - 3x )2 =

36 + 36x + 3x2

36 - 18x + 3x2

36 - 36x + 9x2

36 - 18x + 9x2

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

( x - 7)(x + 7) =

x2 - 2x +49

x2 - 14

x2 + 49

x2 - 49

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

( 3 + 5x)(3 - 5x) =

6- 15x +25x2

3 - 15x2

9 - 25x2

9 + 5x2

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

( x + 9)2 =

x2 + 18x + 81

x2 + 9x + 81

x2 + 18x + 9

x + 18x + 81

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Suma algebraiczna 9x2−6x+1  jest równa:

(1−3x)2

(3x+1)2

(3x+1)(3x−1)

3(3x2−2x+1)

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Wyrażenie  x2+12x+36 zapisane w postaci kwadratu sumy lub kwadratu różnicy  to:

(x+6)2

(x−6)(x+6)

(x2-6)(x2+6)

(x-6)2

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