Find the sum of the following algebraic expressions :
`3x^(3) - 5x^(2) + 2x + 1 , 3x - 2x^(3) - x^(3) , 2x^(2) - 7x + 9 `

Add the following algebraic expressions : (i) 5x^(3)- 3x + 7 , 2x^(2) - 11 and 7x^(3) - 11x^(2) + 4x- 3

Find the value of each of the following algebraic expressions. 3x - 4y + 9, if x = 5 and y = -2

Subtract : 2x^(4) - 7x^(2) + 5x + 3 " from " x^(4) - 3x^(3) - 2x^(2) + 3

Write all the terms of each of the following algebraic expressions : 3xyz-(2)/(x^(2))+5xy^(2)-7z^(3)+5x

Write the number of terms in each of the following algebraic expressions : 2x-:2y-7x^(2)+3

Factorize each of the following algebraic expressions: 3x+15 (ii) 2x^2+5x iii) 3x^2y-6x y^2 (iv) 6x^3+8x^2y

Write all the terms of each of the following algebraic expressions : 2x^(2)-(3)/(x)+(5)/(x^(2))+9

If x=1 and y=2, find the values of each of the following algebraic expressions: (i) 3x+2y-7 (ii) x^2

If x=1 and y=2, find the values of each of the following algebraic expressions: (i) 2x+3\ (ii) 3x-5y

Find the median of the following data if the value of x = 4 , x -4, 2x - 6, 3x-10 ,(x)/(2) - 1 , ( 3x)/( 2 x - 4) , x + 3, (x)/( 2), 2x + 7, 3x - 2, 2x -5