计算(1)(14)0×4-2(2)(-2a)3-(-a)(3a)2(3)(m-n)2-(n-m)3-(n-m)4(4)(b2n)3(b3)4n÷(b5)n+1.-数学

题目简介

计算(1)(14)0×4-2(2)(-2a)3-(-a)(3a)2(3)(m-n)2-(n-m)3-(n-m)4(4)(b2n)3(b3)4n÷(b5)n+1.-数学

题目详情

计算
(1)(
1
4
0×4-2                  
(2)(-2a)3-(-a)(3a)2
(3)(m-n)2-(n-m)3-(n-m)4         
(4)(b2n3(b34n÷(b5n+1
题型:解答题难度:中档来源:不详

答案

(1)(class="stub"1
4
)0×4-2
=1×class="stub"1
16

=class="stub"1
16


(2)(-2a)3-(-a)(3a)2
=-8a3-(-a)(9a2)
=-8a3+9a3
=a3;

(3)(m-n)2•(n-m)3•(n-m)4
=(n-m)2•(n-m)3•(n-m)4
=(n-m)2+3+4
=(n-m)9;

(4)(b2n)3(b3)4n÷(b5)n+1
=b6n•b12n÷b5n+5
=b6n+12n-5n-5
=b13n-5.

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