5272道题目5525 条题源记录 · 相同内容已合并
二次方程・零点与韦达定理挑战
-4x2-7x =-36
What is the positive solution to the given equation?
原库参考解析
判别式・相切与根的个数进阶
\( 4x^2+19=32x+r \)
In the given equation, r is a constant. The equation has exactly one real solution. What is the value of r?
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判别式・相切与根的个数挑战
\( x\left(kx-112\right)=-16 \)
In the given equation, k is an integer constant. If the equation has two distinct real solutions, what is the greatest possible value of k?
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判别式・相切与根的个数挑战
\( r^2+qr=8r-97 \)
In the given equation, q is an integer constant. The given equation has no real solution. What is the largest possible value of q?
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判别式・相切与根的个数进阶
y = -1.5
y = x2 + 8x + a
In the given system of equations, a is a positive constant. The system has exactly one distinct real solution. What is the value of a?
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判别式・相切与根的个数挑战
\( kx^2-16x=24x^2-8 \)
In the given equation, k is an integer constant. If the equation has two distinct real solutions, what is the greatest possible value of k?
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判别式・相切与根的个数挑战
\( r^2+qr=2r-55 \)
In the given equation, q is an integer constant. The given equation has no real solutions. What is the largest possible value of q?
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判别式・相切与根的个数进阶
y = 2x2 − 21x + 64
y = 3x + a
In the given system of equations, a is a constant. The graphs of the equations in the given system intersect at exactly one point, (x, y), in the xy-plane. What is the value of a ?
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判别式・相切与根的个数进阶
\( y=-1.5 \)
\( y=x^2+4x+a \)
In the given system of equations, a is a positive integer constant. The system has no real solutions. What is the least possible value of a?
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判别式・相切与根的个数进阶
y =-6.5
y = x2+ 8x+a
ln the given system of equations, a is a positive integer constant.The system has no real solutions. what is the least possible value of a?
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判别式・相切与根的个数挑战
−x2 + bx − 676 = 0
In the given equation, b is a positive integer. The equation has no real solution. What is the greatest possible value of b ?
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判别式・相切与根的个数进阶
\( y=x^2-37x \)
\( y=-\frac{1}{4}(108x+k) \)
The graphs of the equations in the given system intersect at exactly one point \( (x,\ y) \) in the xy-plane. What is the value of x ?
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