To solve a quadratic equation, we can use the ___ formula. A. linear B. quadratic C. cubic D. exponential 相关知识点: 试题来源: 解析 B。解二次方程可以用二次公式,quadratic 是二次的;linear 是线性的;cubic 是三次的;exponential 是指数的。反馈 收藏 ...
解析 You getx= (-b± √ (b^2-4ac))(2a)= (-(5)±√ ((5)^2-4(1)(-3)))(2(1))= (-5± √ (37))2=- 52± (√ (37))2The solution of the equation x^2+5x-3=0 is x such thatx=- 52± (√ (37))2.反馈 收藏 ...
The fourth method of solving a quadratic equation is by using the quadratic formula, a formula that will solve all quadratic equations. Although the quadratic formula works on any quadratic equation in standard form, it is easy to make errors in substituting the values into the formula. Pay ...
A quadratic equation is of the form ax2 + bx + c = 0 where a ≠ 0. A quadratic equation can be solved by using the quadratic formula. You can also use Excel's Goal Seek feature to solve a quadratic equation.
Although it looks hard, this formula is one of the two most memorable ones in mathematics. Since it has to apply to any quadratic equation we must represent the numerical parts of the three terms by letters, using a, b, and c: $$a{x^2} + bx + c = 0$$ (1) You will agree ...
A. Solve each quadratic equation using the quadratic formula (14 points)1. x^2+6x+9=02. x^2+7x+10=03. x^2+4x-21=0 相关知识点: 试题来源: 解析 -3;-2;-5;-7;3 x^2+6x+9=0: 解:x=-3 x^2+7x+10=0: 解:x=-2, x=-5 x^2+4x-21=0: 解:x=-7, x=3...
Quadratic Equation in Standard Form: ax2 + bx + c = 0 Quadratic Equations can be factored Quadratic Formula: x = −b ±√(b2 − 4ac) 2a When the Discriminant (b2−4ac) is: positive, there are 2 real solutions zero, there is one real solution negative, there are 2 complex ...
The formula for the quadratic equation is ax²+bx + c = 0, and its solution formula is x = [-b±√(b² - 4ac)]/2a. If a = 1, b = 3, c = 2, how to write this solution formula in English? A. x equals minus b plus or minus the square root of (b squared minus ...
By adding or subtracting a squared number on both sides of the quadratic equation, we can complete the square. Answer and Explanation: Consider the quadratic equation {eq}\displaystyle x^2 + 9x + 16 = 0 {/eq}. Let us solve the quadratic equation by using completing th...
Answer to: Solve the equation for real solutions, if there are any, by using the quadratic formula. 2x^2 = 9x + 1 By signing up, you'll get...