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展開・因数分解①

Authored by Hajime BB

Mathematics

3rd Grade

Used 44+ times

展開・因数分解①
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8 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 x(8x+3)x\left(8x+3\right)  を展開する

 8x2+3x8x^2+3x  

 8x2+38x^2+3  

 11x211x^2  

 8x+3x8x+3x  

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 (x+3)(y+2)\left(x+3\right)\left(y+2\right)  を展開する

 xy+2x+3y+6xy+2x+3y+6  

 xy+5x+6xy+5x+6  

 x2+5x+6x^2+5x+6  

 xy+6xy+6  

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 (x+2)(x+5)\left(x+2\right)\left(x+5\right)  を展開する

 x2+7x+10x^2+7x+10  

 x2+10x+7x^2+10x+7  

 x2+3x+10x^2+3x+10  

 xy+7x+10xy+7x+10  

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 (x+7)(x7)\left(x+7\right)\left(x-7\right)  を展開する

 x249x^2-49  

 x2+x49x^2+x-49  

 x2x49x^2-x-49  

 x214x^2-14  

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 (x+6)2\left(x+6\right)^2  を展開する

 x2+12x+36x^2+12x+36  

 x2+6x+12x^2+6x+12  

 x2+6x+36x^2+6x+36  

 x2+36x+12x^2+36x+12  

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 8x2y+12xy28x^2y+12xy^2  を因数分解する

 4xy(2x+3y)4xy\left(2x+3y\right)  

 x(8xy+12y2)x\left(8xy+12y^2\right)  

 2xy(4x+6y)2xy\left(4x+6y\right)  

 y(8x2+12xy)y\left(8x^2+12xy\right)  

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 x2+9x+8x^2+9x+8  を因数分解する

 (x+8)(x+1)\left(x+8\right)\left(x+1\right)  

 (x+2)(x+4)\left(x+2\right)\left(x+4\right)  

 (x2)(x4)\left(x-2\right)\left(x-4\right)  

 (x8)(x1)\left(x-8\right)\left(x-1\right)  

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