R. D. Sharma Solutions for Chapter: Algebraic Expressions, Exercise 5: OBJECTIVE TYPE QUESTIONS

The product of the numerical coefficients of terms in $-\frac{4}{3}{\mathrm{ab}}^2+\frac{1}{4}{\mathrm{bc}}^2+3{\mathrm{ca}}^2$ is

If $\mathrm{a}$ and $\mathrm{b}$ are respectively the sum and product of numerical coefficients of the terms in the expression ${\mathrm{x}}^2+{\mathrm{y}}^2+{\mathrm{z}}^2-\mathrm{xy}-\mathrm{yz}-\mathrm{zx}$, then $\mathrm{a}+2\mathrm{b}=?$

If $\mathrm{P}=3{\mathrm{x}}^3+3{\mathrm{x}}^2+3\mathrm{x}+3$ and $\mathrm{Q}=3{\mathrm{x}}^2-3\mathrm{x}+3$, then $\mathrm{P}-\mathrm{Q}=$

The sum of the values of the expression $2{\mathrm{x}}^2-2\mathrm{x}+2$ when $\mathrm{x}=-1$ and $\mathrm{x}=1$ is

What should be added to $3x^2+4$ to get $9x^2-7$?

How much is $a^2-3a$ greater than $2a^2+4a$?

How much is $-2{\mathrm{x}}^2+\mathrm{x}+1$ less than ${\mathrm{x}}^2+2\mathrm{x}-3$?

What should be added to $xy+yz+zx$ to get $-xy-yz-zx$?