Subcase 2 x<15. When x<15 we are going to have 4x−60<0, therefore |4x—60| can be expressed in the form 60−4x. We have the equation x=60−4x⇒5x=60⇒x=12. Since 12 is less than 15, 12 is another possible solution. X=|2x—|60−2x||. ...
百度试题 结果1 题目What is the solution to the equation 2(x - 3) = 10? A. 4 B. 6 C. 8 D. 10 相关知识点: 试题来源: 解析 C。先展开方程得 2x - 6 = 10,移项可得 2x = 16,解得 x = 8。反馈 收藏
百度试题 结果1 题目In the interval between 0° and 360°, what is the solution set of 2 x − 4 = 0 to the nearest degree? 相关知识点: 试题来源: 解析 {45°, 135°, 225°, 315°} {45°, 135°, 225°, 315°} 反馈 收藏 ...
百度试题 结果1 题目What is the solution of the system of equations shown?()-x+3y+2z=9-4y+z=-72x-3y+z=-7 A. (-1,2,1) B. (1,-2,-1) C. (-1,2,-1) D. (1,-2,1) 相关知识点: 试题来源: 解析 A 反馈 收藏
What are the solution sets for x2+2x-48?相关知识点: 试题来源: 解析 正确答案: Find two numbers whose product is -48 and sum is 2.8 and -6 are the only possible numbers. Therefore, the solution sets are (x-6) and (x+8).反馈 收藏 ...
What are the solution sets for x2+2x-48?相关知识点: 试题来源: 解析 Find two numbers whose product is -48 and sum is 2.8 and -6 are the only possible numbers. Therefore, the solution sets are (x-6) and (x+8). null反馈 收藏 ...
试题来源: 解析 正确答案:(x - 6)and(x + 8) 解析:Find two numbers whose product is -48 and sum is 2. 8 and -6 are the only possible numbers. Therefore, the solution sets are(x - 6)and(x + 8). 知识模块:计算反馈 收藏
解析 D Choice D is correct. The value of b^2-4ac determines the nature of roots. From the equation substitute a=1, b=1, and c=1 into the expression. b^2-4ac=1-4=-3. As b^2-4ac is negative, there are no real solutions to the equation.反馈 收藏 ...
[主观题] What are the solution sets for x2+2x-48?答案 查看答案发布时间:2020-09-17 更多“What are the solution sets for x2+2x-48?”相关的问题 第1题 We believe___he said. A.what B.that C.that what D.all what 点击查看答案 第2题 ___important information! Thanks for telling...
百度试题 结果1 题目What is the solution to the following system of equations? ( ) x+2y=12 x-y=3 A. (-6) 9 B. 2 5 C. 3 4.5 D. 6 3 E. 18 15 相关知识点: 试题来源: 解析 D 反馈 收藏