K. Hoa - 7HĐT

K. Hoa - 7HĐT

8th Grade

13 Qs

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K. Hoa - 7HĐT

K. Hoa - 7HĐT

Assessment

Quiz

Mathematics

8th Grade

Easy

Created by

Phan Hoa

Used 5+ times

FREE Resource

13 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

x2 - 4x +4

(x + 1)2

(2 + x)2

(x - 1)3

(x - 2)2

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 (A+B)2\left(A+B\right)^2  =.............
Chọn đáp án đúng để điền vào chỗ chấm.

 A2+2ABB2A^2+2AB-B^2  

 A2+2AB+B2A^2+2AB+B^2  

 A22AB+B2A^2-2AB+B^2  

 A22ABB2A^2-2AB-B^2  

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Chọn đáp án đúng để điền vào chỗ chấm

 (A  B)2\left(A\ -\ B\right)^2  =...........................

 A22AB +B2A^2-2AB\ +B^2  

 A22AB B2A^2-2AB\ -B^2  

 A2+2AB +B2A^2+2AB\ +B^2  

 A2B2A^2-B^2  

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Chọn đáp án đúng để điền vào chỗ chấm:

 A2B2=...................................A^2-B^2=...................................  

 (B+A)2AB\left(B+A\right)2AB  

 A22ABA^2-2AB  

 A22AB+B2A^2-2AB+B^2  

 (AB)(A+B)\left(A-B\right)\left(A+B\right)  

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 100A2 =100-A^2\ =  

 (100A)(100+A)\left(100-A\right)\left(100+A\right)  

 (A10)(A+10)\left(A-10\right)\left(A+10\right)  

 A2102A^2-10^2  

 (10A)(10+A)\left(10-A\right)\left(10+A\right)  

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Kết quả rút gọn

 (32x)(3+2x) \left(3-2x\right)\left(3+2x\right)\   là bao nhiêu

 9+4x29+4x^2  

 94x29-4x^2  

 912x +4x29-12x\ +4x^2  

 9+12x+4x29+12x+4x^2  

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Chọn đáp án đúng để điền vào chỗ chấm:

 (3a)2(5b)2 =...........................\left(3a\right)^2-\left(5b\right)^2\ =...........................  

 (3a5b)(3a+5b)\left(3a-5b\right)\left(3a+5b\right)  

 9a230ab+25b29a^2-30ab+25b^2  

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