Question 2 :
Simplify the expression and find the value if x=3 , a=-1 , b=-2 for $2a-2b-4-5+a$.
Question 3 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c93df59b460d7261e964.jpeg' />
State true or false: In the given figure, the tree diagram is a correct representation of the terms and their factors of the exression $-ab+2b^2-3a^2$.
Question 7 :
Identify factors in the expression given below:
- 4x + 5
Question 8 :
Subtract :
- $m^{2}$ + 5mn from 4$m^{2}$ - 3mn + 8
Question 11 :
If a = 2, b = - 2, find the value of:
$a^{2}$ + ab + $b^{2}$
Question 12 :
If m = 2, find the value of:
$3m^2$ - 2m - 7
Question 13 :
Classify whether the expression is a monomial , binomial or trinomial $4p^2q-4pq^2$.
Question 15 :
Identify the term which contain x and give its coefficient in $y^{2}x+y$.
Question 16 :
Simplify the expressions and find the value if x is equal to 2.
3(x + 2) + 5x - 7
Question 19 :
State if the given pair of expressions are like or unlike. $pq^{2}, -4pq^{2}$
Question 20 :
Add :
ab - 4a, 4b - ab, 4a - 4b
Question 21 :
State whether a given pair of terms is of like or unlike terms.
- 7x, $\dfrac{5}{2}x$
Question 23 :
Identify the term which contain x and give its coefficient in $1+x+xy$.
Question 24 :
Classify the following expression as a monomial,a binomial or a trinomial : $ab+a+b-5$
Question 26 :
Identify terms in the expression given below:
1.2ab - 2.4b + 3.6a
Question 28 :
If a = 2, b = - 2, find the value of:
$a^{2}$ + $b^{2}$
Question 30 :
Get the algebraic expression in the following case using variables, constants and arithmetic operations.
Subtraction of z from y.
