计算:(x2n-2xnyn+y2n)÷(xn-yn)(n为正整数)=______.
题型:填空题难度:一般来源:不详
计算:(x2n-2xnyn+y2n)÷(xn-yn)(n为正整数)=______. |
答案
(x2n-2xnyn+y2n)÷(xn-yn) =(xn-yn)2÷(xn-yn) =xn-yn. 故应填:xn-yn. |
举一反三
(4×2n)÷(2×2n-1)的计算结果是______. |
计算(-8m4n+12m3n2-4m2n3)÷(-4m2n)的结果等于( )A.2m2n-3mn+n2 | B.2n2-3mn2+n2 | C.2m2-3mn+n2 | D.2m2-3mn+n |
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与单项式-3a2b的积是6a3b2-2a2b2+9a2b的多项式是______. |
______÷2xy=x2y-2xy2+1,横线上应填的多项式为( )A.2x3y2-4x2y3 | B.x-y | C.2x3y2-4x2y3+2xy | D.x-y+1 |
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