问题
解答题
化简:
|
答案
原式=
1 |
2(x-3) |
3 |
(x+3)(x-3) |
=
x+3 |
2(x-3)(x+3) |
6 |
2(x+3)(x-3) |
=
x+3-6 |
2(x-3)(x+3) |
=
x-3 |
2(x-3)(x+3) |
=
1 |
2x+6 |
化简:
|
原式=
1 |
2(x-3) |
3 |
(x+3)(x-3) |
=
x+3 |
2(x-3)(x+3) |
6 |
2(x+3)(x-3) |
=
x+3-6 |
2(x-3)(x+3) |
=
x-3 |
2(x-3)(x+3) |
=
1 |
2x+6 |