Question Text
Question 1 :
Simplify: $(x + y)(2x + y) + (x + 2y)(x – y)$
Question 4 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61cc1acd78c526e972caf062.PNG' />
Which of the following options represent the expression of point C given in the above figure ?
Question 5 :
Evaluate the value of : $3p \times (4p^2 + 5p + 7)$
Question 6 :
$a (a^2 + a + 1) + 5$ ,find its value for a = 1.
Question 7 :
Use a suitable identity to get the following product : $(1.1m-0.4)(1.1m+0.4)$
Question 12 :
State true or false. Expressions that contain exactly two terms is called binomials.
Question 15 :
What will be the product of first monomial $-4xy$ and second monomial $-4xy$ ?
Question 16 :
State true or false: (ab + bc) (ab – bc) + (bc + ca) (bc – ca) + (ca + ab) (ca – ab) = 0
Question 17 :
What is the cofficient of the term $5xy^2$ in the expression $x^2y^2 -10x^2y +5xy^2-20$?
Question 19 :
An expression containing, one or more terms with non-zero coefficient (with variables having non negative integers as exponents) is called a __________.