Webb平方减4ac这个公式到底怎么用啊,能举一个例题说明一下吗. 扫码下载作业帮. 搜索答疑一搜即得. 答案解析. 查看更多优质解析. 解答一. 举报. 在一元二次方程ax^2+bx+c=0 (a≠0)里, 判别式 (delta)=b^2-4ac. WebFeb 19, 2013 · 这是一元二次方程的求根公式 对于ax²+bx+c=0 求根公式是x=[-b±√(b²-4ac)]/2a 如果不懂,请Hi我,祝学习愉快!
Quadratic Equation - Formulas, Tricks for Solving Quadratic …
WebNov 8, 2024 · 只含有一个未知数(一元),并且未知数项的最高次数是 2 (二次)的整式方程 叫作 一元二次方程 [1] 。 一元二次方程经过整理都可化成一般形式 ax2+bx+c=0 ( … WebJun 5, 2013 · 2015-06-10 b平方-4ac。 万能公式那个下个公式是什么 494 2024-02-27 b平方减4ac的解法过程是什么? 17 2015-09-09 b^2-4ac这个公式是怎么来的?有什么意义 … glassguard stain remover
2a分之负b加减根号下b方减4ac是求啥的啊!我忘了。_百度知道
WebThe expression b 2 − 4ac is known as discriminant. If the discriminant is positive (b 2 − 4ac ≥ 0) then it has two real square roots; otherwise, it has two complex roots. If a, b, and c are real numbers and a ≠ 0 then If b 2 − 4ac > 0 then there are two distinct real roots or solutions to the equation ax 2 + bx + c = 0. WebFree math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor. WebCase 2: When a > 0 and b 2 – 4ac = 0. The graph of a quadratic equation will be concave upwards and will touch the x-axis at a point -b/2a. The quadratic equation will have two equal real roots, i.e., α = β. The quadratic function f(x) will be positive, i.e., 0 ≤ f(x), x ∈ R. Case 3: When a > 0 and b 2 – 4ac < 0 glass guide business