Algebraic Expre...

The value ofis

The addition of ^, andgives

Simplify:

Find the value of .

The value of 16x² + 81y² - 72xy, when x = 20 and y = 4 is

An expression is taken away fromto obtain. Find that expression from among the following.

Write the given algebraic expression in descending order of its exponent.

How many diagonals are there in a regular octagon?

Simplify: -

By what quantity is more than ?

If p = -2 and q = 1, then what is the value of ?

The order of an expression is

The degree of is

If , then the value of is

If x = 11c⁴ + 21c³ + 12c² - 9c + 5, y = 26c³ - 10c² - 9c + 7 and z = -10c² + 7c + 9, then x - y + z is equal to

Which of the following equations is incorrect?

Simplify:

6x(12x - 8y) - 3y(3x + y) + 2(x + 6y - 3)(x + y - 2)

What will be obtained when (4a + 5b - 7c) is added to (2a - 11b + c) and then the answer is divided by (6a - 6b - 6c)?

If x = 4, y = -5 and z = 2, find the value of the expression.

How many monomials are there?

(i)) 5m²n
(ii) 3xy + 5x + 1
(iii) 5x³ - 9y²
(iv) a

In an apartment,people live. Out of them, the number of females is. How many males live there?

Sham earns Rs. x everyday and spends Rs. y per week. What are his savings in 4 weeks?

Suhail's weekly salary was Rs. 4555r. He saved 40% of it. He gave of the remainder to his wife and purchased a piano for of the leftover amount. How much money would he be left with, if r = 4?

An air conditioner costs Rs. 165.50s. Additional stabiliser costs Rs. 25s. What is the total cost of 4 air conditioners and 6 additional stabilisers?

From 2000 to 2003, the amount spent by Rahul on groceries (G) and bills (B) can be described by the following expressions, where x is the number of years since 2000.

Amount spent by Rahul on groceries (G) =
Amount spent by Rahul on bills (B) =

What was the total amount spent by Rahul on groceries and bills from 2000 to 2003?

State T for true and F for false.

(i) The value of, when x = 1, is 4.
(ii)is a monomial.
(iii) a + b - c is a trinomial.

Match the following:

Find the value of for x = 9 and y = 2.

Fill in the blanks:

1. Terms which have the same algebraic factors are ______ terms.
2. An algebraic expression of more than three terms is called a _______.
3. m × m has two factors, so to express it we can write: m × m = _______.
4. The ________ of two like terms is a like term with coefficient equal to the sum (or difference) of the coefficients of the two like terms.