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 ...
What are the solutions of the quadratic equation 4x^2 - 8x - 12 = 0? What are the solutions to the quadratic equation 4(x + 2)^2 = 36? What are the solutions to the quadratic equation (5y + 6)^2 = 24? What are the solutions of the quadratic equation 4x^2 + 34x ...
What are the roots of the quadratic equation 3x − 14x − 5 = 0?A: and −3B: and −5C:
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,outside or on this circle?Give a reason foryour answer.Problem 2...
Root of Quadratic Equations:The root of the standard form of the quadratic equation of the form {eq}ax^{2} + bx+c = 0 {/eq} is given by: {eq}x=\frac{-b\pm \sqrt{b^2-4\cdot a\cdot c}}{2\cdot a} {/eq}Answer and Explanation: ...
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 ...
Now, we will discuss different methods to solve quadratic equations. Solving Quadratic Equations Using Factorisation Let the quadratic equation be ax2+ bx + c = 0, where a, b, c, $\epsilon$ R and a ≠ 0. Let the quadratic polynomial, ax2+ bx + c be expressible as the product of ...
What is the equation for the axis of symmetry of a quadratic function y = 3x² + 6x + 2? A. x = -1 B. x = -2 C. x = -3 D. x = -4 相关知识点: 试题来源: 解析 A。解析:For the function y = 3x² + 6x + 2, a = 3 and b = 6. Using the formula x = -b/...
The final method of solving the standard quadratic equation is by directly substituting the constant coefficients (a, b, and c) into the quadratic formula: x = (-b±sqrt(b2-4ac))/2a, which was derived by the method of completing the squares in the generalized equation. The discriminant of...
Quadratic EquationThe general form of a quadratic equation is: Whenthefunctionisgraphedaparabolaisgenerated.ax2+bx+c=0Answer and Explanation: To solve for a quadratic equation is to find the roots of the equation, which are the possible values of x. The are two methods to determine x. One ...