Find the product :` (3/4x+4/5y)(4/5x-1/7y)`

Find the products: (4x-5y)(16 x^2+20 x y+25 y^2)

Find the products: (i) (2x+y)(2x-y)(4x^2+y^2) (ii) (x-y/5-1)\ (x+y/5+1)

Find the product of : 4x^(2) - 5y^(2) and 3x^(2) +2y^(2)

Find the following products: (i) 7/5x^2y(3/5x y^2+2/5x) (ii) 4/3a(a^2+b^2-3c^2)

Use the identity (x+a)(x+b)=x^2+(a+b)x+ab to find the following products. (i) (x+3)(x+7) (ii) (4x+5)(4x+1) (iii) (4x+5)(4x+1) (iv) (4x+5)(4x-1) (v) (2x+5y)(2x+3y) (vi) (2a^2+9)(2a^2+5) (vii) (xyz-4)(xyz-2)

Find the following products: (i) (x+2)(x+3) (ii) (x+7)(x-2) (iii) y-4)(y-3) (iv) (y-7)(y+3) (vi) (2x-3)(2x+5) (vii) (3x+4)(3x-5)

Simplify : (4x - 5y)(5x - 4y)

If x : y = 4 : 7 , find the value of (3x + 2y) : (5x + y) .

Find the following products: (i) (z^2+2)(z^2-3) (ii) (3x-4y)(2x-4y) (iii) (3x^2-4x y)(3x^2-3x y) (iv) (x+1/5)(x+5)

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))