百度试题 结果1 题目 The quadratic equation has roots twice those of , and none of , , and is zero. What is the value of ?( ) A: B: C: D: E: 相关知识点: 试题来源: 解析 D N/A. 反馈 收藏
The roots of the quadratic equation z^{2}+az+b=0 are 2-3i and 2+3i. What is a+b? What do the solutions of a quadratic equation represent? What are the values of a, b, and c in the quadratic equation x^2 - 15 = 0?
结果1 题目 What is the equation of the quadratic function with a vertex at (2,-25) and an x-intercept at (7,0)? ( ) A. f(x)=(x-2)(x-7) B. f(x)=(x+2)(x+7) C. f(x)=(x-3)(x+7) D. f(x)=(x+3)(x-7) 相关知识点: 试题来源: 解析 D 反馈 收藏 ...
A quadratic equation is in the form y=ax2+bx+c, where a,b, and c are real numbers and x and y represent all possible (x,y) pairs that satisfy the equation.Answer and Explanation: The U-shaped graph that is created when plotting all possible (x,y) pairs that satisfy the quadratic ...
Consider the quadratic equationx2 + y2 + Dx + Ey + F = 0:What condition on the values of D,E and F determines whether this a circle?Use this condition to show thatx2 + y2 ¡ 2x ¡ 4y + 3 = 0is a circle and sketch the circle.Does the point (0:4; 3) lie inside,out...
What are the roots of the quadratic equation 3x − 14x − 5 = 0?A: and −3B: and −5C:
General form quadratic equation is {eq}ax^2 + bx + c = 0 {/eq}, Wherea,b,care the constant terms and {eq}x^2 \ , \ x {/eq} be the variable terms. Answer and Explanation:1 The general form of quadratic equation is {eq}ax^2 + bx + c = 0 \\ {/eq} Wherea,b,care co...
O A. x=-6 and x= 4O B. x=-2 and x = 6O C. x=-3 and x=8O D. x=-4 and x = 6 相关知识点: 试题来源: 解析 x^2-8x-24=0 x^2-4x-12=0 x^2-6x+2x-12=0 x(x-6)+2(x-6)=0 (x-6)(x+2)=0 x=6cndx=—2 optin B A 反馈 收藏 ...
A quadratic equation is a polynomial of degree two. A standard quadratic equation can be represented asax2+bx+c=0. For a quadratic equation of the above form, the solutions arex=−b±b2−4ac2a. We generally use this rule if we cannot factor the quadratic equation. ...
Normally a quadratic equation will graph out into a parabola. The standard form is f(x)=a(x-h)2+k