Algebraic Expressions and Identities (IMO- Mathematics Olympiad Class 8): Questions 39 - 46 of 63

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Question number: 39

» Algebraic Expressions and Identities

MCQ▾

Question

(a+2b)24ab is equivalent to________.

Choices

Choice (4) Response

a.

a2+3b2

b.

a24b2

c.

(a+3b)2

d.

a2+4b2

Question number: 40

» Algebraic Expressions and Identities

MCQ▾

Question

If +1x=3 , then x2+1x2 is________.

Choices

Choice (4) Response

a.

3

b.

1

c.

7

d.

2

Question number: 41

» Algebraic Expressions and Identities

MCQ▾

Question

On multiplying 3x2y by 4x , we get product________.

Choices

Choice (4) Response

a.

4x4y

b.

5x2y

c.

3x2

d.

12x3y

Question number: 42

» Algebraic Expressions and Identities

MCQ▾

Question

The difference of the degrees of the polynomials 3xy8z+2x7yzz5 and 2x3y3+1 is________

Choices

Choice (4) Response

a.

10

b.

4

c.

5

d.

7

Question number: 43

» Algebraic Expressions and Identities

MCQ▾

Question

If 3x+6y=1 , then x+2y is equal to________.

Choices

Choice (4) Response

a.

34

b.

13

c.

45

d.

23

Question number: 44

» Algebraic Expressions and Identities

MCQ▾

Question

What must be subtracted from 2x5+5x3+2x1 to get x2+1 ?

Choices

Choice (4) Response

a.

2x55x3x2+2x2

b.

2x5+5x3x2+2x1

c.

2x5+5x3x2+2x2

d.

2x5+5x3+x2+2x+2

Question number: 45

» Algebraic Expressions and Identities

MCQ▾

Question

The value of (67.542)2(32.458)275.45840.374 is________.

Choices

Choice (4) Response

a.

1000

b.

10

c.

1

d.

100

Question number: 46

» Algebraic Expressions and Identities

MCQ▾

Question

If 1x=2 , then x2+1x2 is________.

Choices

Choice (4) Response

a.

2

b.

7

c.

4

d.

1

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