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練習問題

Authored by Yuya Nishiyama

Mathematics

9th Grade

Used 5+ times

練習問題
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9 questions

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1.

MULTIPLE SELECT QUESTION

1 min • 1 pt

 (5a+b)×5a\left(5a+b\right)\times5a  

 25a+5ab25a+5ab  

 25a2+5ab25a^2+5ab  

 25a2+b25a^2+b  

2.

MULTIPLE SELECT QUESTION

1 min • 1 pt

 (6a29a)÷3a\left(6a^2-9a\right)\div3a  

 3a33a-3  

 2a32a-3  

 2a23a2a^2-3a  

3.

MULTIPLE SELECT QUESTION

1 min • 1 pt

 (2x2+4xy)÷23x\left(2x^2+4xy\right)\div\frac{2}{3}x  

 3x2+6xy3x^2+6xy  

 6x3+12y6x^3+12y  

 43x+83x2y\frac{4}{3}x+\frac{8}{3}x^2y  

 3x+6xy3x+6xy  

4.

MULTIPLE SELECT QUESTION

1 min • 1 pt

 (x3)(y+5)\left(x-3\right)\left(y+5\right)  

 xy+5x3y15xy+5x-3y-15  

 xy+5x+3y15xy+5x+3y-15  

 xy+5x3y+15xy+5x-3y+15  

5.

MULTIPLE SELECT QUESTION

1 min • 1 pt

 (x+9)(x5)\left(x+9\right)\left(x-5\right)  

 x24x45x^2-4x-45  

 x2+4x45x^2+4x-45  

 x2+4x+45x^2+4x+45  

 x24x+45x^2-4x+45  

6.

MULTIPLE SELECT QUESTION

1 min • 1 pt

 (a+3)2\left(a+3\right)^2  

 a2+6a+9a^2+6a+9  

 a2+3a+9a^2+3a+9  

 a26a+9a^2-6a+9  

7.

MULTIPLE SELECT QUESTION

1 min • 1 pt

 (2x3y)2\left(2x-3y\right)^2  

 4x26xy+9y24x^2-6xy+9y^2  

 4x6xy9y24x-6xy-9y^2  

 4x212xy+9y24x^2-12xy+9y^2  

 4x2+12xy+9y4x^2+12xy+9y  

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