4x^4-1
=(2x^2+1)(2x^2-1)
=(2x^2+1)(√2x+1)(√2x-1)
3x^2-10
=(√3x+√10)(√3x-√10)
x^4-6x^2+9
=(x^2-3)^2
={ (x+√3)(x-√3)}^2
=(x+√3)^2 * (x-√3)^2
4x^4-1
=(2x^2+1)(2x^2-1)
=(2x^2+1)(√2x+1)(√2x-1)
3x^2-10
=(√3x+√10)(√3x-√10)
x^4-6x^2+9
=(x^2-3)^2
={ (x+√3)(x-√3)}^2
=(x+√3)^2 * (x-√3)^2