问题
解答题
计算与化简: (1)计算:4+(-2)2×2-(-36)÷4 (2)计算:(-2)3-
(3)化简:3(3a-2b)-2(a-3b) |
答案
(1)原式=4+4×2-(-9)
=4+8+9
=17;
(2)原式=-8-
-(-5 6
)3 2
=-8-
+5 6 3 2
=-
;22 3
(3)原式=9a-6b-2a+6a
=7a.
计算与化简: (1)计算:4+(-2)2×2-(-36)÷4 (2)计算:(-2)3-
(3)化简:3(3a-2b)-2(a-3b) |
(1)原式=4+4×2-(-9)
=4+8+9
=17;
(2)原式=-8-
-(-5 6
)3 2
=-8-
+5 6 3 2
=-
;22 3
(3)原式=9a-6b-2a+6a
=7a.