3
x^2+3x=1
-2x^2-6x=-2
-2x^2-6x+5=3
已知x的平方+3x=1,求式子-2x的平方-6x+5
已知x的平方+3x=1,求式子-2x的平方-6x+5
数学人气：860 ℃时间：2020-03-02 09:09:32
优质解答
我来回答
类似推荐
猜你喜欢
- 1望天门山、山行.暮江吟表现出作者什么思想感情
- 2“人需要祝福,需要思念.如果一滴水代表祝福,我送你一个东海；如果……如果……”仿写两个句
- 3用所给的词组编写一则歌谣 Father likes fishing;fishing is his hobby.Mother likes ( );( )is her hobb
- 4I heard her ＿（sing） in the next room when I came back.
- 5缪怎么读
- 6for long time my life didn't have
- 7I am in Class Two,Grade
- 8设椭圆的中心在原点,一个焦点是F(-m,o),(m是大于0的常数)且长轴为焦距的2倍
- 9(a+b）^2-16a^2
- 10How long will the film last_____(at/for)?