" (g) "x^(4)-7x^(2)y^(2)+y^(4)

The factors of (x ^(4) - 7x ^(2) y ^(2) + y ^(4)) are

If x^(4)+7x^(2)y^(2)+9y^(4)=24xy^(3) then (dy)/(dx)=

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

Divide : -14x^(6)y^(3) - 21x^(4)y^(5) + 7x^(5)y^(4) by 7x^(2)y^(2)

Simplify: (i) (x-y)(x+y)x^2+y^2)\ (x^4+y^4) (ii) (2x-1)\ (2x+1)(4x^2+1)(16 x^4+1) (iii) (7m-8n)^2+(7m+8n)^2

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))

If x^2+y^2=7 and xy=2 then x^4-2x^2y^2+y^4=