百度试题 结果1 题目 Which quadratic equation has equal roots? A: 4x= − 32x + 64 = 0 B: 4x= + 32x + 24 = 0 C: 2x= − 8x − 64 = 0 D: 4x= + 10x − 6 = 0 相关知识点: 试题来源: 解析 ANone 反馈 收藏 ...
Let be a constant. If the quadratic equation has equal roots, then ( ). 设为一常数.若二次方程有等根,则( ). A: . B: . C: or . 或. D: or . 或. 相关知识点: 试题来源: 解析 B Since it has equal roots, 因为方程有等根, (double roots)....
is known as the discriminant of the quadratic equation. If D>0 the equation has two distinct real roots. For example, x2+x-6, with D=25, has the two roots x=2 and x=-3. If D=0, the equation has two equal real roots. For example, x2-4x+4, with D=0 has the double root...
If a quadratic polynomial is equated to zero it becomes a quadratic equation. The values of \(x\) satisfying the equation are known as the roots of the quadratic equation. What is Discriminant? The value of \(\left( {{b^2} – 4ac} \right)\) in the quadratic equation \(a{x^2} +...
If the quadratic equation x2 ax a=1 has equal roots, then a=( ). 设a为一常数.若二次方程x2 ax a=1有等根,则a=( ). A. −1. B. 2. C. 0 or −4.0或−4. D. 0 or 4.0或4. 相关知识点: 试题来源: 解析 B x2+ax+a=1 x2+ax+a−1=0 Since it has equal ...
百度试题 结果1 题目(ii) a quadratic equation with roots 相关知识点: 试题来源: 解析 sum of new roots= =(3(a^3+β^3))/(|aβ|^3) =9/((Qβ)^3) =9/((6/4)^3) =8/3 =-3/2 =-8/9 反馈 收藏
Understand the meaning of the roots of an equation and how to find the roots of a quadratic equation. Also, see the formula used in finding the...
一题简单的英文版高级数学题.The quadratic equation x^2-x=k(x+1) has non-zero roots which differ by 1.Find the value of (i) each root,(ii)the constant k.翻译:二次方程 x^2-x=k(x+1)具有差别1的非零根.找以下的值(i)各
From the quadratic equation whose roots are−7and3/2 View Solution Free Ncert Solutions English Medium NCERT Solutions NCERT Solutions for Class 12 English Medium NCERT Solutions for Class 11 English Medium NCERT Solutions for Class 10 English Medium ...
3. a. Given that p and qare roots of the equation 4x^2+x-12=0 . Form a quadratic equation which has the roots 2p-1and 2q-1. b. The quadratic equation x(x-2m)=-(3m+4) has equal roots. Find value of m. 相关知识点: ...