Dr Pooranmal and Ashfaq A Khan Solutions for Chapter: Algebraic Expressions, Exercise 1: EXERCISE 6.1

Check the following algebraic expression is polynomial or not?

$2x-4$

Check the following algebraic expression is polynomial or not?

$\frac{4}{2}{a}^2-4a+1$

Check the following algebraic expression is polynomial or not?

$\frac{2x^2-3y+5}{x}$

Add the following:

$3-7y+4y^2-6y^4, 7+2y-3+10y^4, y^2+2y-6$

Add the following:

$3x^4+2x^3-3x^2+2x-1, x^4-8, x^5+6x^2-3x+10$

Add the following:

$\frac{4}{5}xy+\frac{9}{7}y+\frac{12}{5}x, \frac{-16}{9}xy+\frac{3}{10}x-\frac{4}{7}y+3$

Subtract the following:

$x^3-x^2+2x-3x^4+1$ from $16x^4-5x^3+8x^2-7$

Subtract the following:

$18a^2{b}^2+9a^{2}b-13ab+17$ from $20a^2{b}^2+2a^{2}b-5a{b}^2+5$