" (i) "4x^(5)-6y^(4)+7x^(2)y-9

Divide : -14x^(6)y^(3) - 21x^(4)y^(5) + 7x^(5)y^(4) by 7x^(2)y^(2)

Factorise: 4x ^(2) - y ^(2)+ 6y-9.

Subtract 5x^(2)-4y^(2)+6y-3 from 7x^(2)-4xy+8y^(2)+5x-3y

If 7x - 15y = 4x + y , find the value of x: y . Hence, use componendo and dividendo to find the values of : (i) (9x + 5y)/(9x - 5y) (iI) (3x^(2) + 2y^(2))/(3x^(2) - 2y^(2))

2x^2\X\ 3x y^2\X\ 4x^3y^5 is equal to: (a) 24 x^6y^6 (b) 24 x^6y^7 24 x^7y^6 (d) 24 x^7y^7

Write the following polynomials is standard form. (i) x-9+sqrt 7x^(3) +6x^(2) (ii) sqrt 2x^(2) -(7)/(2) x^(4) +x -5x ^(3) (iii) 7x^(3) - ( 6)/(5) x^(3) +4x -1 (iv) y^(2) +sqrt5y ^(3) -11 -(7)/(3) y+9y^(4)

Add: (i) x y^2+4x^2y-7x^2y-3x y^2+3\ a n d\ x^(2y)+x y^2 (ii) 5x^2+7y-6z^2,\ 4y+3x^2,9x^2+2z^2-9y\ a n d\ 2y-2x^2

Subtract: (i) 5a + 7b - 2c from 3a - 7b + 4c (ii) a - 2b - 3c from -2a + 5b - 4c (iii) 5x^(2) - 3xy + y^(2) from 7x^(2) - 2xy - 4y^(2) (iv) 6x^(3) - 7x^(2) + 5x - 3 from 4 - 5x + 6x^(2) - 8x^(3) (v) x^(3) + 2x^(2) y + 6xy^(2) - y^(3) from y^(3) - 3xy^(2) - 4x^(2) (vi) -11 x^(2) y^(2) + 7xy - 6 from 9x^(2) y^(2) - 6xy + 9 (vii) -2a + b + 6d from 5a - 2b - 3c

Subtract 5x^(2) -4y^(2) +6y -3 from 7x^(2) -4xy +5y^(2) +5x -3y