One factor of `x^4+x^2-20` is `x^2+5.` The other factor is `x^2-4\ ` (b) `x-4` (c) `x^2-5` (d) `x+2`

One factor of x^(4) +x^(2) +1 is

Factorize x^4-3x^2+2 .

One of the factors of 3x^3+x^2-12x-4 is

Factorize 4x^2+20x+25 .

Factors of x ^(4) + 5x ^(2) + 9 are

The factors of x^4-x^2-10x-25 are (a) (x^2+3x+5)(x^2-3x+5) (b) (x^2+3x+5)(x^2+3x-5) (c) (x^2+x+5)(x^2-x+5) (d) none of these

Factorize : (x^2-4x)(x^2-4x-1)-20

Factorize : (x^2-4x)(x^2-4x-1)-20