Algebraic Expressions Class 7

How many terms are there in the expression 2x²y?

(a)  

How many terms are there in the expression 2 y + 5?

(a)  

What is the coefficient of x in the expression 4 x + 3 y?

(a)  

What is the coefficient of x in the expression 2 z - 3 x z?

• 3

• z

• 3z

• -3z

Which of the following pairs of terms is a pair of like terms?

• 7 x y, 14 yx

• m² p , mp²

• 6 x z , 12 x² z²

• -13 x , -13 y

Which of the following pairs of terms is a pair of unlike terms?

• -p² q² , 12 q² p²

• 41 , 100

• q p² , 13 p² q

• -4 y x² , -4 x y²

Add 2 m n , -4 m n , 8 m n , -6 m n

• 0

• 2 m n

• 8 m n

• 10 mn

• 69

• 48

• 78

• 68

Subtract −4x from 3y

• 3y + 4x

• 3y-4x

• -4x-3y

• 7xy

Evaluate the expression:

3b + 4c if b = 9 and c = 3

• 27

• 12

• 15

• 39