Mathematics>Chapter 12 - Algebraic Expressions>EXERCISE 12.2>Q 3

EASY

7th Punjab Board

IMPORTANT

Earn 100

Subtract $- x^{2} + 10 x - 5$ from $5 x - 10$ .

Important Questions on Algebraic Expressions

HARD

7th Punjab Board

IMPORTANT

Mathematics>Chapter 12 - Algebraic Expressions>EXERCISE 12.2>Q 3

Subtract $5 a^{2} - 7 a b + 5 b^{2}$ from $3 a b - 2 a^{2} - 2 b^{2}$ .

HARD

7th Punjab Board

IMPORTANT

Mathematics>Chapter 12 - Algebraic Expressions>EXERCISE 12.2>Q 3

Subtract $4 p q - 5 q^{2} - 3 p^{2}$ from $5 p^{2} + 3 q^{2} - p q$ .

MEDIUM

7th Punjab Board

IMPORTANT

Mathematics>Chapter 12 - Algebraic Expressions>EXERCISE 12.2>Q 4

What should be added to

x^{2} + x y + y^{2}

to obtain

2 x^{2} + 3 x y

?

MEDIUM

7th Punjab Board

IMPORTANT

Mathematics>Chapter 12 - Algebraic Expressions>EXERCISE 12.2>Q 4

What should be subtracted from

2 a + 8 b + 10

to get

- 3 a + 7 b + 16

?

HARD

7th Punjab Board

IMPORTANT

Mathematics>Chapter 12 - Algebraic Expressions>EXERCISE 12.2>Q 5

What should be taken away from

3 x^{2} - 4 y^{2} + 5 x y + 20

to obtain

- x^{2} - y^{2} + 6 x y + 20

?

HARD

7th Punjab Board

IMPORTANT

Mathematics>Chapter 12 - Algebraic Expressions>EXERCISE 12.2>Q 6

From the sum of

3 x - y + 11

and

- y - 11,

subtract

3 x - y - 11

.

HARD

7th Punjab Board

IMPORTANT

Mathematics>Chapter 12 - Algebraic Expressions>EXERCISE 12.2>Q 6

From the sum of

4 + 3 x

and

5 - 4 x + 2 x^{2},

subtract the sum of

3 x^{2} - 5 x

and

- x^{2} + 2 x + 5

.

EASY

7th Punjab Board

IMPORTANT

Mathematics>Chapter 12 - Algebraic Expressions>EXERCISE 12.3>Q 1

If

m = 2,

find the value of

m - 2

.