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Қысқаша көбейту формуласы 7 сынып

Authored by Шынар Бектурова

Mathematics

7th Grade

Used 107+ times

Қысқаша көбейту формуласы 7 сынып
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8 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

1.  (2a+3b)2 амалды орындаңдар.

4a2+9b2

4a2+12ab+9b2

4a2+12ab+3b2                        

4a2-12ab+9b2

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

12x+x2+36 өрнегін екімүшенің квадраты түрінде жазыңдар:

(x-6)2   

(x-4)2

(x+6)2  

(2x-6)2

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Амалды орындаңдар: (b+2a)(2a-b)

 b2-4a2      

4ab+b2

В)2a2-b2

Б)4a2-b2 

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

(k+2n2)2=25m2+20mn2+4n4  k-орнына теңдік тура болатындай өрнекті қойыңдар:

 

25m2

5m

5m2

5m4

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

? –н  тура теңбе- теңдік болатындай етіп алмастырыңдар:

(9x+ ?)(9x-?)=81x2-121a2

   

11b2

11a

11a2   

121a2

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

                                                                                                                                  

х2 – 9 көпмүшелерін көбейткіштерге жіктеңдер.                                                                                                                                                                                                                   

(х - 9)(х + 9)

Б) (3-х)(х+3);

(х - 3)(х +3);            

В) (9-х)(9+х)  

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

а3 27в3  көпмүшесін көбейткіштерге жіктеңдер.                                                                                     

 

( а + 3в)(а2 + 3ав + 9в2);                                                                                  

( а + 3в)(а2 – 3ав + 9в2);

( а - 3в)(а2 + 3ав + 9в2);

В)  ( а + 9в)(а2 + 3ав + 9в2);

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