Algebraic Identities., class 8

Algebraic Identities., class 8

8th - 9th Grade

10 Qs

quiz-placeholder

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Algebraic Identities., class 8

Algebraic Identities., class 8

Assessment

Quiz

Mathematics

8th - 9th Grade

Practice Problem

Hard

Created by

Vinny Malhotra

Used 26+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 Square of 2x2 3y2 isSquare\ of\ 2x^2\ -3y^2\ is  

 4x2 9y44x^2\ -9y^4  

 4x4+9y412x2y24x^4+9y^4-12x^2y^2  

 4x4+9y4+12x2y24x^4+9y^4+12x^2y^2  

 4x4+9y44x^4+9y^4  

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 If12x=342262, find the value of xIf12x=34^2-26^2,\ find\ the\ value\ of\ x  

I

50

60

12

600

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 The factorisation of (x2+x12) isThe\ factorisation\ of\ \left(x^2+x-12\right)\ is  

 (x3)(x+4)\left(x-3\right)\left(x+4\right)  

 (x4)(x+3) \left(x-4\right)\left(x+3\right)\   

 (x2)(x+6)\left(x-2\right)\left(x+6\right)  

 (x3)(x4)\left(x-3\right)\left(x-4\right)  

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 If x+ 1x=7, find the value of x2+1x2If\ x+\ \frac{1}{x}=7,\ find\ the\ value\ of\ x_{ }^2+\frac{1}{x^2}  

49

51

47

5

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 (2x+5y)2is equal to\left(2x+5y\right)^2is\ equal\ to  

 4x2+25y2+10xy4x^2+25y^2+10xy  

 4x225y2+20xy4x^2-25y^2+20xy  

 4x2+25y2+20xy4x^2+25y^2+20xy  

none of these

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 The value of (2x5y)(2x+5y) isThe\ value\ of\ \left(2x-5y\right)\left(2x+5y\right)\ is  

 4x210y24x^2-10y^2  

 4x2+25y24x^2+25y^2  

 4x225y24x^2-25y^2  

 4x2+10y24x^2+10y^2  

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 Simplify: 102X 1022X 2102+2Simplify:\ \frac{102X\ 102-2X\ 2}{102+2}  

400

102

100

104

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