问题
解答题
计算:
(1)(8×103)×(-102)2
(2)(-2x2)3•x2+(3x4)2.
答案
(1)原式=(8×103)×104
=8×107;
(2)原式=-8x6•x2+9x8
=-8x8+9x8
=x8.
计算:
(1)(8×103)×(-102)2
(2)(-2x2)3•x2+(3x4)2.
(1)原式=(8×103)×104
=8×107;
(2)原式=-8x6•x2+9x8
=-8x8+9x8
=x8.