8A-NHỮNG HẰNG ĐẲNG THỨC ĐÁNG NHỚ

8A-NHỮNG HẰNG ĐẲNG THỨC ĐÁNG NHỚ

8th - 9th Grade

10 Qs

quiz-placeholder

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8A-NHỮNG HẰNG ĐẲNG THỨC ĐÁNG NHỚ

8A-NHỮNG HẰNG ĐẲNG THỨC ĐÁNG NHỚ

Assessment

Quiz

Mathematics

8th - 9th Grade

Practice Problem

Hard

Created by

ĐỨC VIỆT

Used 30+ times

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10 questions

Show all answers

1.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

 Tính  (2x12)2=\left(2x-\frac{1}{2}\right)^2=  

 2x22x+142x^2-2x+\frac{1}{4}  

 4x24x+44x^2-4x+4  

 4x22x+144x^2-2x+\frac{1}{4}  

 2x22x+142x^2-2x+\frac{1}{4}  

2.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

Tính (2x+12)3 =\left(2x+\frac{1}{2}\right)^3\ =  

 2x3+3x2+3x+122x^3+3x^2+3x+\frac{1}{2}  

 8x3+6x2+32x+188x^3+6x^2+\frac{3}{2}x+\frac{1}{8}  

 8x3+3x2+3x+188x^3+3x^2+3x+\frac{1}{8}  

 2x36x2+32x182x^3-6x^2+\frac{3}{2}x-\frac{1}{8}  

3.

FILL IN THE BLANK QUESTION

2 mins • 1 pt

Rút gọn rồi tính giá trị biểu thức A=(x10)2x.(x80) vi x=0,98A=\left(x-10\right)^2-x.\left(x-80\right)\ với\ x=0,98  

4.

FILL IN THE BLANK QUESTION

2 mins • 1 pt

Tính giá trị biểu thức B=27(x3).(x2+3x+9) vi x=3B=27-\left(x-3\right).\left(x^2+3x+9\right)\ với\ x=-3  

5.

FILL IN THE BLANK QUESTION

2 mins • 1 pt

Tìm x biết : (x3)24=0\left(x-3\right)^2-4=0  

6.

FILL IN THE BLANK QUESTION

2 mins • 1 pt

 Tıˋm x bie^t: (x2)3x2.(x6)=4Tìm\ x\ biêt:\ \left(x-2\right)^3-x^2.\left(x-6\right)=4  

7.

FILL IN THE BLANK QUESTION

3 mins • 1 pt

 Tıˋm GTNN ca biu thc C=4a2+4a+2Tìm\ GTNN\ của\ biểu\ thức\ C=4a^2+4a+2  

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