[2x+4y=5xy],[" (viii) "(1)/(3x+y)+(1)/(3x-y)=(3)/(4)],[(1)/(2(3x+y))-(1)/(2(3x-y))=(-1)/(8)]

(1)/(2(3x+4y))=(1)/(5(2x-3y))=(1)/(4),

Solve the following simultaneous equations. (1)/(2(3x+4y))+(1)/(5(2x-3y))=(1)/(4) , (5)/((3x+4y)) - (2)/((2x-3y))=(3)/(2)

1/(3x+y)+1/(3x-y)=3/4 and 1/(3x+y)-1/(3x-y)= -1/4

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)

Solve each the following pairs of equations by reducing them to a pair of linear equations. (viii) 1/3x+y + 1/3x+y + 1/3x-y = 3/4 1/2(3x+y) - 1/2(3x-y) = -1/8

if xy^(4)=2x^(2)y^(3)-y^((1)/(3))-5 at (dy)/(dx) at (1,-1)

Subtract: x^(2)y-(4)/(5)xy^(2)+(4)/(3)xy om (2)/(3)x^(2)y+(3)/(2)xy^(2)-(1)/(3)xy