题目内容
计算:
(1)(-2a)2=________;
(2)(x3y2)4=________.
(1)4a2 (2)x12y8
如果方程组的解使代数式kx+2y-z的值等于10,求k的值.
m·m3=m4.( )
(1)(b-2)4·(2-b)3;
(2)a3·a5+a2·a6-2a·a·a6.
计算(a2b3)3的结果是
A.
a6b9
B.
a5b6
C.
D.
(-4xy2z3)3=________.
(m2)3·m4等于
m9
m10
m12
m14
设长方形长为(a+b+c),宽为m,则面积为________.
(1)(π-3)0=________.
(2)若3x-1=1,则x=________.