问题
解答题
解下列分式方程 (1)
(2)
|
答案
(1)去分母得:x-3+x-2=-3,
整理得:2x=2,
解得:x=1,
经检验x=1是分式方程的解;
(2)去分母得:x(x-1)=(x+3)(x-1)+2(x+3),
去括号得:x2-x=x2-x+3x-3+2x+6,
移项合并得:-5x=3,
解得:x=-
,3 5
经检验x=-
是分式方程的解.3 5
解下列分式方程 (1)
(2)
|
(1)去分母得:x-3+x-2=-3,
整理得:2x=2,
解得:x=1,
经检验x=1是分式方程的解;
(2)去分母得:x(x-1)=(x+3)(x-1)+2(x+3),
去括号得:x2-x=x2-x+3x-3+2x+6,
移项合并得:-5x=3,
解得:x=-
,3 5
经检验x=-
是分式方程的解.3 5
阅读下列材料,从A、B、C、D四个选项中选出最佳答案。 | ||||||||||
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1. According to the passage, how many kinds of ingredients do we need to make "A"? | ||||||||||
A. Two B. Three C. Four D. Five | ||||||||||
2. What is "A"? | ||||||||||
A. A chicken sandwich. B. A milk shake. C. A fruit salad. D. A turkey sandwich. | ||||||||||
3. According to the passage, we need _______ to make a turkey sandwich. | ||||||||||
A. bananas B. a watermelon C. apples D. a tomato |