Множення  та ділення раціональних дробів

Множення та ділення раціональних дробів

8th Grade

33 Qs

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Множення  та ділення раціональних дробів

Множення та ділення раціональних дробів

Assessment

Quiz

Mathematics

8th Grade

Practice Problem

Medium

Created by

Ирина Супрун

Used 1+ times

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33 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

 x2168x34xx+4\frac{x^2-16}{8x^3}\cdot\frac{4x}{x+4}  

 x222(x+4)\frac{x^2-2}{2\left(x+4\right)}  

 x42x2\frac{x-4}{2x^2}  

 x44x2\frac{x-4}{4x^2}  

 (x4)4x2x2\frac{\left(x-4\right)\cdot4x}{2x^2}  

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 7b22821b\frac{7b^2}{2}\cdot\frac{8}{21b}  

 56b242b\frac{56b^2}{42b}  

 4b3\frac{4b}{3}  

 147b316\frac{147b^3}{16}  

 43\frac{4}{3}  

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 18m4÷7n6\frac{18}{m^4}\div\frac{7}{n^6}  

 136(mn)10\frac{136}{\left(mn\right)^{10}}  

 18n67m4\frac{18n^6}{7m^4}  

 136n6\frac{136}{n^6}  

 n73\frac{n^7}{3}  

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

 (2x23y)5\left(\frac{2x^2}{3y}\right)^{^5}  

 2x103y5\frac{2x^{10}}{3y^5}  

 10x1015y5\frac{10x^{10}}{15y^5}  

 32x10243y5\frac{32x^{10}}{243y^5}  

 2x53y\frac{2x^5}{3y}  

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

 3x22x2x4x\frac{3}{x^2-2x}\cdot\frac{2x-4}{x}  

 3x\frac{3}{x}  

 2x4x2\frac{2x-4}{x-2}  

 6x2\frac{6}{x^2}  

 3(2x4)x(x2)\frac{3\left(2x-4\right)}{x\left(x-2\right)}  

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 (a2b2c)4\left(-\frac{a^2b}{2c}\right)^4  

 a8 b416c4-\frac{a^{8\ }b^4}{16c^4}  

 a8b48c4\frac{a^8b^4}{8c^4}  

 a8b2c\frac{a^8b}{2c}  

 a8b416c4\frac{a^8b^4}{16c^4}  

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 a2+2ab+b2a22ab+b2aba2b2\frac{a^2+2ab+b^2}{a^2-2ab+b^2}\cdot\frac{a-b}{a^2-b^2}  

 a+bab\frac{a+b}{a-b}  

 a+b(ab)2\frac{a+b}{\left(a-b\right)^2}  

1

 (a+b)2ab\frac{\left(a+b\right)^2}{a-b}  

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