问题
解答题
计算:
(1)x3•x5•x+(x3)12+4(x6)2=______
(2)-2(a3)4+a4•(a4)2=______
答案
(1)x3•x5•x+(x3)12+4(x6)2,
=x3+5+1+x3×12+4x6×2,
=x9+x36+4x12;
(2)-2(a3)4+a4•(a4)2,
=-2a3×4+a4•a8,
=-2a12+a12,
=-a12.
故填x9+x36+4x12;-a12.