5272道题目5525 条题源记录 · 相同内容已合并
判别式・相切与根的个数挑战
\( x^2-\frac{49}{16}=0 \)
How many distinct real solutions does the given equation have?
原库参考解析
判别式・相切与根的个数挑战
Which quadratic equation has no real solutions?
原库参考解析
判别式・相切与根的个数挑战
\( -25x^2-10x+c=0 \)
In the given equation, c is a constant. The equation has exactly one solution. What is the value of c?
原库参考解析
判别式・相切与根的个数挑战
\( \left(x+k\right)^2+37=37 \)
In the given equation, k is a constant. How many distinct real solutions does this equation have?
原库参考解析
判别式・相切与根的个数挑战
\( \frac{1}{cx}=\frac{x}{148}+\frac{1}{c} \)
In the given equation, c is a constant. If the equation has exactly one solution, what is the value of c?
原库参考解析
判别式・相切与根的个数挑战
\( x^2-\frac{49}{81}=0 \)
How many distinct real solutions does the given equation have?
原库参考解析
判别式・相切与根的个数进阶
\( \left(x+13\right)^2+26\left(x+13\right)+169=0 \)
How many distinct real solutions does the given equation have?
原库参考解析
判别式・相切与根的个数挑战
\( y=x-c \)
\( y=-2\left(x-12\right)^2 \)
In the given system of equations, c is a constant. The system has two distinct real solutions. Which of the following could be the value of c?
原库参考解析
判别式・相切与根的个数挑战
\( y=x^2-16x+37 \)
\( y + 4=0 \)
How many solutions are there to the given system of equations?
原库参考解析
判别式・相切与根的个数挑战
x2 = 2,601
How many distinct real solutions does the given equation have?
原库参考解析
判别式・相切与根的个数进阶
Which quadratic equation has exactly one distinct real solution?
原库参考解析
判别式・相切与根的个数挑战
x2= 3,136
How many distinct real solutions does the given equation have?
原库参考解析
