题目内容
(64)3=64·________·________=64+4+4=________.
64 64 612
如图所示,∠1与∠2是同位角的图的个数是________个.
计算:
(1)(x+y)3·(x+y)4;
(2)xn+1·x2·x3-n;
(-3)2012·()2012的结果是
A.
3
B.
-3
C.
1
D.
-1
总结:幂的乘方,底数________,指数________.
2(a3)4+a8·a4=________.
总结:单项式与单项式相乘,________.
已知x2-2x=2,将下式化简,再求值.
(x-3)(x+1)+(x+3)(x-3)+(x-3)(x-1).
下面的计算一定正确的是
b3+b3=2b6
(-3pq)2=-9p2q2
5y3·3y5=15y8
b9÷b3=b3