Find each of the following products:
(i) (4x + 5y) (4x - 5y) (ii) `(3x^(2) + 2y^(2)) (3x^(2) - 2y^(2))`

Find each of the following products: (i) (4x - 7y) (4x - 7y) (ii) (3x^(2) - 4y^(2)) (3x^(2) - 4y^(2))

Find each of the following products: (i) (3x + 2y) (3x + 2y) (ii) (4x^(2) + 5) (4x^(2) + 5)

Find each of the following products -4x^(2)y (3x^(2) - 5y)

Find each of the following products: (i) (-5x y)xx(-3x^2y z) (ii) 1/2x y\ xx2/3x^2y z^2

Find each of the following products: (i) 5a^(2) b^(2) xx (3a^(2) - 4ab + 6b^(2)) (ii) (-3x^(2)y) xx (4x^(2) y - 3xy^(2) + 4x - 5y)

Find each of the following products: (i) (x + 3) (x - 3) (ii) (2x + 5)(2x - 5) (ii) (8 + x)(8 - x) (iv) (7x + 11y) (7x - 11y) (v) (5x^(2) + (3)/(4) y^(2)) (5x^(2) - (3)/(4) y^(2)) (vi) ((4x)/(5) - (5y)/(3)) ((4x)/(5) + (5y)/(3)) (vii) (x + (1)/(x)) (x - (1)/(x)) (viii) ((1)/(x) + (1)/(y)) ((1)/(x) - (1)/(y)) (ix) (2a + (3)/(b)) (2a - (3)/(b))

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 each of the following products : (2x^(2) - 5y^(2)) xx (x^(2) + 3y^(2))

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))

Find the each of the following products: (2x^(2) - 5y^(2))(x^(2) + 3y^(2))