Racionalni algebarski izrazi 2

Racionalni algebarski izrazi 2

9th Grade

7 Qs

quiz-placeholder

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Racionalni algebarski izrazi 2

Racionalni algebarski izrazi 2

Assessment

Quiz

Mathematics

9th Grade

Hard

Created by

Desa Ilić

Used 9+ times

FREE Resource

7 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 1x+12\frac{1}{x}+\frac{1}{2}      Izracunaj

 2+x2+x  

 12x\frac{1}{2x}  

 2xx+2\frac{2x}{x+2}  

 2+x2x\frac{2+x}{2x}  

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 3xy2x+y =\frac{3}{x-y}-\frac{2}{x+y}\ =  

 x+5yx2y2\frac{x+5y}{x^2-y^2}  

 x+5y(xy)2\frac{x+5y}{\left(x-y\right)^2}  

 x+3yxy\frac{x+3y}{x-y}  

 x+3yx2y2\frac{x+3y}{x^2-y^2}  

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 1a+3+a(a+3)2=\frac{1}{a+3}+\frac{a}{\left(a+3\right)^2}=  

 2a+3a+3\frac{2a+3}{a+3}  

 2a+3(a+3)2\frac{2a+3}{\left(a+3\right)^2}  

 2a+5a+3\frac{2a+5}{a+3}  

 3a+3(a+3)2\frac{3a+3}{\left(a+3\right)^2}  

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 1b2a+b3b(a+b)=\frac{1}{b}-\frac{2}{a+b}-\frac{3}{b\left(a+b\right)}=  

 a+b3b(a+b)\frac{a+b-3}{b\left(a+b\right)}  

 a3b(a+b)\frac{a-3}{b\left(a+b\right)}  

 ab3b(a+b)\frac{a-b-3}{b\left(a+b\right)}  

 ab3b2(a+b)2\frac{a-b-3}{b^2\left(a+b\right)^2}  

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 5a32a+3a43aa+14a=\frac{5a-3}{2a}+\frac{3a-4}{3a}-\frac{a+1}{4a}=  

 39a3712a\frac{39a-37}{12a}  

 39a+316a\frac{39a+31}{6a}  

 9a612a\frac{9a-6}{12a}  

 9a812a\frac{9a-8}{12a}  

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 45x10+163x2x2=\frac{4}{5x-10}+\frac{1}{6-3x}-\frac{2}{x-2}=  

 2315(x2)\frac{23}{15\left(x-2\right)}  

 715(x2)\frac{7}{15\left(x-2\right)}  

 315(x2)\frac{3}{15\left(x-2\right)}  

 2315(x2)\frac{-23}{15\left(x-2\right)}  

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 1a2b2+1a22ab+b2=\frac{1}{a^2-b^2}+\frac{1}{a^2-2ab+b^2}=  

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

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

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

 2a2b2\frac{2}{a^2-b^2}