# Match Column I with Column II in the following:

Column I Column II

1. The difference of 3 and a number squared (a) 4 - 2x

2. 5 less than twice a number squared (b) n² - 3

3. Five minus twice the square of a number (c) 2n² - 5

4. Four minus a number multiplied by 2 (d) 5 - 2n²

5. Seven times the sum of a number and 1 (e) 3 - n²

6. A number squared plus 6 (f) 2 (n + 6)

7. 2 times the sum of a number and 6 (g) 7 (n + 1)

8. Three less than the square of a number (h) n² + 6

**Solution:**

We have to find the correct match of Column I with Column II

Let the number be n

1) The difference of 3 and a number squared

A number squared = n²

Difference of 3 and a number squared = 3 - n²

2) 5 less than twice a number squared

A number squared = n²

Twice a number squared = 2n²

5 less than a number squared = 2n² - 5

3) Five minus twice the square of a number

Square of a number = n²

Twice the square of a number = 2n²

Five minus twice the square of a number = 5 - 2n²

4) Four minus a number multiplied by 2

A number multiplied by 2 = 2n

Four minus a number multiplied by 2 = 4 - 2x

5) Seven times the sum of a number and 1

The sum of a number and 1 = n + 1

Seven times the sum of a number and 1 = 7(n + 1)

6) A number squared plus 6

A number squared = n²

A number squared plus 6 = n² + 6

7) 2 times the sum of a number and 6

Sum of a number and 6 = n + 6

2 times the sum of a number and 6 = 2(n + 6)

8) Three less than the square of a number

Square of a number = n²

Three less than the square of a number = n² - 3

**✦ Try This: **Write a polynomial that represents the producct of three consecutive odd integers, the first one being (2x-1)

**☛ Also Check: **NCERT Solutions for Class 7 Maths Chapter 12

**NCERT Exemplar Class 7 Maths Chapter 10 Problem 98**

## Match Column I with Column II in the following: 1. The difference of 3 and a number squared (a) 4 - 2x, 2. 5 less than twice a number squared (b) n² - 3, 3. Five minus twice the square of a number (c) 2n² - 5, 4. Four minus a number multiplied by 2 (d) 5 - 2n², 5. Seven times the sum of a number and 1 (e) 3 - n², 6. A number squared plus 6 (f) 2 (n + 6), 7. 2 times the sum of a number and 6 (g) 7 (n + 1), 8. Three less than the square of a number (h) n² + 6

**Summary:**

The correct match of Column I with Column II is mentioned below:

1. The difference of 3 and a number squared → (e) 3 - n²

2. 5 less than twice a number squared → (c) 2n² - 5

3. Five minus twice the square of a number → (d) 5 - 2n²

4. Four minus a number multiplied by 2 → (a) 4 - 2x

5. Seven times the sum of a number and 1 →(g) 7 (n + 1)

6. A number squared plus 6 → (h) n² + 6

7. 2 times the sum of a number and 6 → (f) 2 (n + 6)

8. Three less than the square of a number → (b) n² - 3

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