问题
解答题
计算:(1)
(2)
|
答案
(1)原式=
•2x•4x 3y•3y
=-3y -4x
.2x 3y
(2)原式=
•(a+2)(a+3) 2(a+3)
=(a+4)(a-2) (a+2)(a-2)
.a+4 2
计算:(1)
(2)
|
(1)原式=
•2x•4x 3y•3y
=-3y -4x
.2x 3y
(2)原式=
•(a+2)(a+3) 2(a+3)
=(a+4)(a-2) (a+2)(a-2)
.a+4 2