M L Aggarwal Solutions for Chapter: Algebraic Expressions and Identities, Exercise 2: Objective Type Questions

Write the name of a symbol that can take various numerical values.

An equation is true for all values of variables in it.

The literal coefficient of $-9xy{z}^2$ is

Degree of the polynomial $7x^{2}y{z}^2+6x^3{y}^2{z}^2-5x+8y$ is

$a(b-c)+b(c-a)+c(a-b)$ is equal to

$\frac{7}{5}xy-\frac{2}{3}xy+\frac{8}{9}xy$ is equal to

$\left(3p^{2}q{r}^3\right)\times \left(-4p^3{q}^2{r}^2\right)\times \left(7p{q}^{2}r\right)$ is equal to

$3m\times \left(2m^2-5mn+4n^2\right)$ is equal to