Practice MCQ Questions and answers on Chapter 5: Expansion & Factorization of Algebraic Expressions - Math Mcqs for Grade 7

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Chapter 5: Expansion & Factorization of Algebraic Expressions - Math Mcqs for Grade 7

1.

Expansion of (x + 3y)(x - y) gives

A. x² + 2xy - 3y²

B. x + 3y - 2xy

C. -2y + 3x

D. 3y - 42x

Answer & Solution Discuss in Board

2.

9a² - 4 gives

A. (3a + 2)(3a - 2)

B. 9a + 12

C. (4a + 13)(4a - 13)

D. 54a - 32

Answer & Solution Discuss in Board

3.

Factorize x² + 8x + 12

A. (x + 2)(x + 6)

B. (x + 3)(x + 4)

C. 3x + 12

D. 3x - 12

Answer & Solution Discuss in Board

4.

If x=3 is solution of x² + kx + 15, the value of k is

A. k = -8,x = 5

B. k = 8, x = 3

C. k = 6, x = 5

D. None of above

Answer & Solution Discuss in Board

5.

Expansion of 2x(x + 2y) + 3x(2x - 3y) yields

A. 8x² - 5xy

B. 8x - 5y

C. 3y - 2y

D. none of above

Answer & Solution Discuss in Board

6.

The two positive numbers differ by 5 and square of their sum is 169 are

A. 2,4

B. 5,6

C. 4,9

D. 3,7

Answer & Solution Discuss in Board

7.

Factorize 2x²y² + 5xy - 12

A. 3xy - 12x + 9y

B. (2xy - 3)(xy + 2)

C. 4y - 3xy

D. (2xy - 3)(xy + 4)

Answer & Solution Discuss in Board

8.

(a + 2b)² - (a + 2b)(3a - 7b) by factorization gives

A. (a + 2b)(9b - 2a)

B. a - 3b + 4ab

C. 5b - 4a

D. None of above

Answer & Solution Discuss in Board

9.

39² + 78 + 1 using algebraic identities gives

A. 1200

B. 1700

C. 500

D. 1600

Answer & Solution Discuss in Board

10.

The whole number such that twice of its square added to itself gives 10

A. 5

B. 2

C. 8

D. 10

Answer & Solution Discuss in Board

Practice MCQ Questions and answers on Chapter 5: Expansion & Factorization of Algebraic Expressions - Math Mcqs for Grade 7

1. Expansion of (x + 3y)(x - y) gives

Answer & Solution

2. 9a² - 4 gives

Answer & Solution

3. Factorize x² + 8x + 12

Answer & Solution

4. If x=3 is solution of x² + kx + 15, the value of k is

Answer & Solution

5. Expansion of 2x(x + 2y) + 3x(2x - 3y) yields

Answer & Solution

6. The two positive numbers differ by 5 and square of their sum is 169 are

Answer & Solution

7. Factorize 2x²y² + 5xy - 12

Answer & Solution

8. (a + 2b)² - (a + 2b)(3a - 7b) by factorization gives

Answer & Solution

9. 39² + 78 + 1 using algebraic identities gives

Answer & Solution

10. The whole number such that twice of its square added to itself gives 10

Answer & Solution

Read More Section(Mathematics Quizzes)

1.

Expansion of (x + 3y)(x - y) gives

2.

9a² - 4 gives

3.

Factorize x² + 8x + 12

4.

If x=3 is solution of x² + kx + 15, the value of k is

5.

Expansion of 2x(x + 2y) + 3x(2x - 3y) yields

6.

The two positive numbers differ by 5 and square of their sum is 169 are

7.

Factorize 2x²y² + 5xy - 12

8.

(a + 2b)² - (a + 2b)(3a - 7b) by factorization gives

9.

39² + 78 + 1 using algebraic identities gives

10.

The whole number such that twice of its square added to itself gives 10