Знаю ФСУ!

Знаю ФСУ!

7th Grade

10 Qs

quiz-placeholder

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Знаю ФСУ!

Знаю ФСУ!

Assessment

Quiz

Mathematics

7th Grade

Practice Problem

Hard

Created by

Rizagul Satvaldina

Used 135+ times

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10 questions

Show all answers

1.

MULTIPLE SELECT QUESTION

20 sec • 1 pt

Дописать равенство (a+3b)2=a2+6ab+...\left(a^{ }+3b\right)^2=a^2+6ab+...

9b29b^2

3b23b^2

b2b^2

2.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

 Раскрыть скобки (6a5b)2Раскрыть\ скобки\ \left(6a-5b\right)^2  


 36a2+60ab+25b236a^2+60ab+25b^2  

 6a230ab+5b26a^2-30ab+5b^2   

 36a260ab+25b236a^2-60ab+25b^2  

 6a2+30ab+5b26a^2+30ab+5b^2  

3.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

 Разложите на множители 49x2100y2Разложите\ на\ множители\ 49x^2-100y^2  


 (7x100y)2\left(7x-100y\right)^2  

 (7x10y)(7x+10y)\left(7x-10y\right)\left(7x+10y\right)  

 (7x10y)2\left(7x-10y\right)^2  

 (49x100y)(49x+100y)\left(49x-100y\right)\left(49x+100y\right)  

4.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

 Разложить на множители 100k6Разложить\ на\ множители\ 100-k^6  


 (10k)(10+k)\left(10-k\right)\left(10+k\right)  

 (10k2)(10+k2)\left(10-k^2\right)\left(10+k^2\right)  

 (10k3)(10+k3)\left(10-k^3\right)\left(10+k^3\right)  

 (10k3)2\left(10-k^3\right)^2  

5.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

 Представить в виде степени 16x272xy+81y2Представить\ в\ виде\ степени\ 16x^2-72xy+81y^2  


 (4x+9y)2\left(4x+9y\right)^2  

 (16x+81y)2\left(16x+81y\right)^2  

 (4x9y)2\left(4x-9y\right)^2  

 (16x81y)2\left(16x-81y\right)^2  

6.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

 Выполните возведение в квадрат (5a2+8b5)2Выполните\ возведение\ в\ квадрат\ \left(5a^2+8b^5\right)^2  


 25a4+80a2b5+64b1025a^4+80a^2b^5+64b^{10}  

 25a480a2b5+64b1025a^4-80a^2b^5+64b^{10}  

 25a4+80a2b564b1025a^4+80a^2b^5-64b^{10}  

 5a4+40a2b5+8b105a^4+40a^2b^5+8b^{10}  

7.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

 Замените знак : +20ab+25b2Замените\ знак\ *:\ *+20ab+25b^2  


 a2a^2  

 2a22a^2  

 4a24a^2  

 4a2-4a^2  

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