Algebraic Expressions

Q.

Among the two supplementary angles the measure of the larger angle is ${36}^{\circ }$ more than the measure of smaller. Find the measures of the angles.

Q.

An expression having 5 terms is called:

1. Monomial

2. Binomial

3. Polynomial

4. Trinomial

Q.

Factorise: $x^2-8x+15$

Q. The length of a rectangle exceeds it's breadth by 7cm. If the length is decreased by 4cm and the breadth is increased by 3cm, the area of the new rectangle is the same as the area of the original rectangle. Find the length and the breadth of the original rectangle?

Q.

Which of the following is not a linear inequality?

1. ax² + bx + c < 0

2. x + by + c ≤ 0

3. ax + by + c ≥ 0

4. ax + b < 0

Q.

The measure of an angle is 4 times the measure of its supplementary angle. Find the measure of the angle

Q. Convert the following statements into equations.
(i) 3 added to a number is 11
(ii) 2 subtracted from a number is equal to 15.
(iii) 3 times a number decreased by 2 is 4.
(iv) 2 times the sum of x and 7 is 13

Q.

Who discovered the subtraction?

Q.

A man said to a lady "Your mothers husbands sister is my aunt." How is the lady related to the man?

1. Sister

2. Daughter

3. Mother

4. Grand-daughter

Q.

Solve :4-2(z-4)/3=1/2(2z+5)

Q.

The complement of an angle is two-fifths of its supplement.Find the angle.

Q.

The leaves were yellow and dry. Find out the verb in this sentence

Q. 5 is subtracted from 3 times a no. The result is 16 find the number

Q. 28 is divided into 2 parts in such a way that 6/5 of one is equal to 2/3of the other. What would be the smallest part?

Q.

Find the value of each of the following expressions:

Q.

Write the expressions for the following statements.

$2$ less than $x$

Q.

Multiply the following:

$-2x,3y$

Q.

If $x:32::4:16$, then value of $x$ is:

1. 3

2. 2

3. 7

4. 8

Q. Why are 7x and 7y not like?

Q.

a/b=5/7 then the value 63a-2b/18b-14a is equal to

Q.

The product of a monomial and a binomial is:

1. Polynomial

2. Binomial

3. Monomial

4. Trinomial

Q. The value of x in the equation 5x = 5 is 5.

1. False
2. True

Q. An equation with more than two algebraic terms is called a ________ .

1. Monomial
2. Binomial
3. Polynomial
4. None of these

Q. Question 6
Find and correct the errors in the statement: $3x+2x=5x^2$

Q.

Why is ab+bc+cd+da a monomial?

Q.

$3xy,-2yx$ are like terms.

1. True
2. False

Q. What are algebraic factors ?

Q.

An algebraic fraction will be positive if either of the numerator or denominator is positive.

1. True

2. False

Q. Wich is the good book of class 8 Maths beside ncert?

Q.

Write the given statement in the form of algebraic expression and write whether it is monomial, binomial or trinomial: Three times of $p$ and two times of $q$ are multiplied and then subtracted from $r$.