[" EXAMPLE 1Find the following produ "],[" (i) "(x+3y)(x^(2)-3xy+9y^(2))]

Find the following products: (i) (0.9x+0.7y)(0.81x^(2)-0.63xy+0.49y^(2)) (ii) ((2x)/(5)-(3y)/(7))((9y^(2))/(49)+(4x^(2))/(25)+(6xy)/(35))

Find the products: (x+3y)(x^(2)-3xy+9y^(2))

Find the products: (3x+2y)(9x^(2)-6xy+4y^(2))

Find the following expressions (x-2y+3)(x^2+4y^2+2xy-3x-6y+9)

Find the products: (x+3y)(x^2-\ 3x y+9y^2)

Find the following products: (6x)/(5)(x^(3)+y^(3)) (ii) xy(x^(3)-y^(3))0.1y(0.1x^(5)+0.1y)( iv) (8)/(27)xyz((3)/(2)xyz^(2)-(9)/(4)xy^(2)z^(3))

(x^(2))/(4)-3xy^(3)+9y^(6)

Find each of the following products: (i) (x - 4)(x - 4) (ii) (2x - 3y)(2x - 3y) (iii) ((3)/(4) x - (5)/(6) y) ((3)/(4)x - (5)/(6) y) (iv) (x - (3)/(x)) (x - (3)/(x)) (v) ((1)/(3) x^(2) - 9) ((1)/(3) x^(2) - 9) (vi) ((1)/(2) y^(2) - (1)/(3) y) ((1)/(2) y^(2) - (1)/(3) y)

Find the following expressions (4x-3y+2z)(16x^2+9y^2+4z^2+12xy+6yz-8zx)

If |x|<1 and |y|<1, find the sum of infinity of the following series: (x+y)+(x^(2)+xy+y^(2))+(x^(3)+x^(2)y+xy^(2)+y^(3))+