Chapter 9 – Algebraic Expressions and Identities

When numbers/literals are added or subtracted, they are called _________.

The expression 7xy has the factors

Which of the following is like term as 7xy?

The like terms of the following are

The coefficient in the term -5x is

How many terms are there in the expression 5xy + 9yz + 3zx + 5x – 4y ?

Which of the following is a monomial?

Add: 7xy + 5yz – 3zx, 4yz + 9zx – 4y, –3xz + 5x – 2xy.

Like terms in the expression 7x, 5×2, 7y, -5yx, -9×2, are

The coefficient of x in the expression -7x +5 is

Expressions consists of _____________ and _______________.

The volume of rectangular box whose length, breadth and height is 2p,4q.8r respectively is

Which of the following is a binomial?

The area of triangle is’ xy’ where’ x’ is length and ‘y’ is breadth. If the length of rectangle is increased by 5 units and breadth is decreased by 3 units, the new area of rectangle will be

Value of expression ‘a(a2+a +1)+5’ for ‘ a’ = 0 is

n (4 + m) = 4n + ___

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

How many terms are there in the expression 5 – 3xy ?

The expression x + y + z is in

Terms are added to form ___________.

The number of terms in the expression 2×2+3x+5 is

Which of the following is an expression?

23. The expression x + 3 is in

24. The expression 4xy + 7 is in

Question 25.The expression x + y + z is in

Question 26.The value of 5x when x = 5 is

Question 27.The value of x² – 2x + 1 when x = 1 is

Question 28.The value of x² + y² when x = 1, y = 2 is

Question 29.The value of x² – 2yx + y² when x = 1, y = 2 is

Question 30.The value of x² – xy + y² when x = 0, y = 1 is