Mathematics

1st -

5thgrade

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8 questions

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  • 1. Multiple Choice
    5 minutes
    1 pt
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    ចូរពន្លាតកន្សោម

     6x242x606x^2-42x-60  

     6x242x60-6x^2-42x-60  

     6x2+42x606x^2+42x-60  

     48x36048x^3-60  

  • 2. Multiple Choice
    5 minutes
    1 pt


    ចូរពន្លាតកន្សោម
     (x+3)(x1)2\left(x+3\right)\left(x-1\right)^2  

     x3+x25x+3x^3+x^2-5x+3  

     2x45x+32x^4-5x+3  

     x3+8x3+3x^3+8x^3+3  

     x3x25x+3x^3-x^2-5x+3  

  • 3. Multiple Choice
    5 minutes
    1 pt


    ចូរពន្លាតកន្សោម
     (ab)(x22ab3b2)\left(a-b\right)\left(x^2-2ab-3b^2\right)  

     a2+3a2b2ab2+3b3a^2+3a^2b^2-ab^2+3b^3  

     a33a2bab2+3b3a^3-3a^2b-ab^2+3b^3  

     a3+3a2bab2+3b3a^3+3a^2b-ab^2+3b^3  

     a3+3a2b+ab2+3b3a^3+3a^2b+ab^2+3b^3  

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