Identities

Identities

8th Grade

30 Qs

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Identities

Identities

Assessment

Quiz

Mathematics

8th Grade

Practice Problem

Medium

Created by

Geetha Ramidi

Used 2+ times

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30 questions

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1.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

 Expansion of (x +4)2 is Expansion\ of\ \left(x\ +4\right)^2\ is\   

 x2+8x+16x^2+8x+16  

x x2+8x+4x^2+8x+4  

 x28x+16x^2-8x+16  

 x2+8x16x^2+8x-16  

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If a+b=7, ab = 10, find a2 + b2

28

29

30

27

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Expand (x−4)2.

x2 −8x+16

x2 −8x−16

x2 +8x+16

x2 −16

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If area of the triangle is 24 ( x2yz + xy2z + xyz2) and its length is 8xyz, then its breadth is ?

3(x + y + z)

3xyz

3(x + y - z)

none

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The square of x2 - 2yis ______

x4 - 4x2y+ 4y4
x4 + 4x2y+ 4y4
x4 - 4x2y- 4y4
None of the above

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Using identity find 201 x 199

3000

3999

39999

31111

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

(p - q)2

p2 + 2pq + q2

p2 + 2pq - q2

p2 - 2pq - q2

p2 - 2pq + q2

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