`(4x + 5)/(4x) = 5`

(4x+5)/(4x) = (4x)/(4x) + 5/(4x) = 1+5/(4x)

(4x + 5y) (4x - 5y) = ____

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) (x + 6) (x + 6) (ii) (4x + 5y) (4x + 5y) (iii) (7a + 9b) (7a + 9b) (iv) ((2)/(3) x + (4)/(5)y) ((2)/(3) x + (4)/(5) y) (v) (x^(2) + 7)(x^(2) + 7) (vi) ((5)/(6) a^(2) + 2) ((5)/(6) a^(2) + 2)

lim_(x rarr oo) ((2x - 3) (3x - 4))/((4x - 5) (5x - 6)) equals :

Solve : (3)/(5)(4x-9) - (5)/(4)(3x-8) = 5-(7)/(10)(2x-1) .

Find the set of values of x, satisfying 7x + 3 ge 3x - 5 and (x)/(4) - 5 le (5)/(4) - x , where x in N .

Find and correct the errors in the following mathematical statements: 4(x – 5) = 4x – 5

Find the expansion of the using suitable identity. ((4x )/( 5 ) + (y)/(4) ) ( ( 4x )/( 5) + ( 3y)/(4))