Find the like terms in the following
`9x^(2)y, 5x, 7y^(2), - 3x^(2), - 5x, 9xy, 11y^(2)`.

Find the like terms in the following: ax^2 y, 2x, 5y^2 , - 9x^2 ,-6x, 7xy, 18y^2 .

Identify and write the like terms in each of the following groups : -2xy^2, x^2y, 5y^2x, x^2z

Add 9x^(2) + 13xy + y^(2) and 6y^(2) - 2xy + 21x^(2)

The arrangement of the following in ascending order of angle to eliminate xy term in the following equations (A) 2x^(2) + 5xy + 2y^(2) + 5x + 7y + 1= 0 (B) 2x^(2) - sqrt(3) xy + 3y^(2) = 9 (C) 9x^(2) + 2 sqrt(3) xy + 5y^(2) = 10

Find 11x^(2)y xx 2xy^(2) xx 5x^(3)y^(3)

Find the number of terms in following algebraic expressions. 5xy^2 , 5xy^3 -9x, 3xy + 4y - 8, 9x^2 +2x+pq+q.

Find the equation of the radical axis of the following circles. x^2 + y^2 - 3x - 4y + 5 = 0. 3(x^2 + y^2) - 7x + 8y - 11 = 0

Find the equation of the radical axis of the following circles x^(2)+y^(2)-3x-4y+5=0,3(x^(2)+y^(2))-7x+8y-11=0

Find the radical centre of the following circles. x^2 + y^2 + 4x - 7 = 0 , 2x^2 + 2y^2 + 3x + 5y - 9 = 0 , x^2 + y^2 + y = 0 .

Group the like terms together : 12x, 12, 25x,-25, 25y, 1, x, 12y, y, 25xy, 5x^2y , 7 xy^2 , 2xy, 3xy^2 , 4x^2y