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ФСУ 7 класс

Authored by Юлия Мадина

Mathematics

7th Grade

Used 3+ times

ФСУ 7 класс
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7 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Раскройте скобки по формуле квадрата разности двух выражений:   (х – 3)²

x²- 9                 

x²-3x+9                   

x²+6x+9                

x²-6x+9        

x2+9

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Разложите на множители по формуле разности  квадратов двух выражений:    25 - х²

(х+5)(х-5)

(5+х)(5-х)           

(5-х)(5-х)             

(25-х)²                 

(5-x)2

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Упростите выражение:  (7x-4)(7x+4)

49x-16           

(7x-4)²                   

49x²+16              

7x²-4²                  

49x²-16

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Вычислить: 642 - 542

100

118

1180

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Разложить на множители : 49m4-144n2

(7m3+12n)(7m3+12n)

(7m-12n)(7m+12n)

(7m2-12n)(7m2+12n) 

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Возвести в квадрат сумму  4+3х

4+12х+3х2

16+24х +9х2

2+12х+16

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Вычислить:762 - 662

142

1420

140

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