x^4-11x^2y^2+30y^4的因式分解
问题描述:
x^4-11x^2y^2+30y^4的因式分解
答
x^4-11x^2y^2+30y^4
=(x^2-5y^2)(x^2-6y^2)
=(x-√5y)(x+√5y)(x-√6y)(x+√6y)
答
=(X^2-5Y^2)(X^2-6Y^2)
答
X ^ 4-11X^2Y^2+30Y^4=(X^2-5Y^2)(X^2-6Y^2)
答
在实数范围里做,如下:原式=x^4-(11x^2y^2-y^2)=x^4-(11x^2-1)y^2 =x^4-(√(11x^2-1)) 2;y 2; =[x 2;+y√
答
x^4-11x^2y^2+30y^4
=(x^2-6y^2)(x^2-5y^2)
=(x-√6y)(x+√6y)(x-√5y)(x+√5y)