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เศษส่วนพูนาม

Authored by ครูแหม่ม ธันชนน

Mathematics

8th Grade

Used 74+ times

เศษส่วนพูนาม
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10 questions

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1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

  x225x+5จากพหุนาม\ \frac{x^2-25}{x+5}  มีรูปสำเร็จตรงกับข้อใด

x+5

x-5

(x+5)(x-5)

(x-5)(x-5)

2.

MULTIPLE CHOICE QUESTION

5 mins • 5 pts

  3xx1+2x1ค่าของ\ \frac{3x}{x-1}+\frac{2}{x-1}  ตรงกับข้อใด

 3x1x1\frac{3x-1}{x-1}  

 5xx1\frac{5x}{x-1}  

 4xx1\frac{4x}{x-1}  

 3x+2x1\frac{3x+2}{x-1}  

3.

MULTIPLE CHOICE QUESTION

5 mins • 5 pts

  aa1+1a(a1)ค่าของ\ \frac{a}{a-1}+\frac{1}{a\left(a-1\right)}  ตรงกับข้อใด

 a2+1a(a1)\frac{a^2+1}{a\left(a-1\right)}  

 a21a(a1)\frac{a^2-1}{a\left(a-1\right)}  

 a2+1a(a+1)\frac{a^2+1}{a\left(a+1\right)}  

 a2+1(a1)\frac{a^2+1}{\left(a-1\right)}  

4.

MULTIPLE CHOICE QUESTION

5 mins • 5 pts

  52b3a4ค่าของ\ \frac{5}{2b}-\frac{3a}{4}  ตรงกับข้อใด

 53ab4b\frac{5-3ab}{4b}  

 103ab4b\frac{10-3ab}{4b}  

 5+3ab4b\frac{5+3ab}{4b}  

 10+3ab4b\frac{10+3ab}{4b}  

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

  xx+3xx+2ค่าของ\ \frac{x}{x+3}-\frac{x}{x+2}  ตรงกับข้อใด

 1(x+2)(x+3)\frac{1}{\left(x+2\right)\left(x+3\right)}  

 1(x+2)(x+3)\frac{-1}{\left(x+2\right)\left(x+3\right)}  

 x(x+2)(x+3)\frac{x}{\left(x+2\right)\left(x+3\right)}  

 x(x+2)(x+3)\frac{-x}{\left(x+2\right)\left(x+3\right)}  

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

  4y×7y+1ค่าของ\ \frac{4}{y}\times\frac{7}{y+1}  ตรงกับข้อใด

 28y2+y\frac{28}{y^2+y}  

 28y2+y\frac{-28}{y^2+y}  

 282y\frac{28}{2y}  

 282y+y\frac{28}{2y+y}  

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

  3mn2m×n6m2nค่าของ\ \frac{3m-n}{2m}\times\frac{n}{6m-2n}  ตรงกับข้อใด

 4nm\frac{4n}{m}  

 n4m\frac{n}{4m}  

 2n4m\frac{2n}{4m}  

 n4m\frac{-n}{4m}  

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