二次公式怎么用,比如:2x^2-5X-3=0怎么用二次公式(quadratic formula)解答?最后一步步列出来RT 答案 求根公式形如ax²+bx+c=0,a≠0,这样的方程当b²-4ac≥0时,x=[-b±√(b²-4ac)]/(2a)把你这个带进去就可以做了另外用十字相乘法也蛮快的二次项系数 2=1*2常数项-3=-1*3一次项系数=-...
Question: Use the quadratic formula to solvex2= 3x+ 3. The Quadratic Formula: The quadratic formula is a formula that can be used to solve a quadratic equation. It does so by finding values ofxthat make the quadratic equation in the formax2+bx+c= 0 a true statement. ...
Quadratic formula is one of the easiest methods of solving quadratic equations. To learn how to solve the quadratic equation using the quadratic formula, along with detailed derivation, steps and solved examples, visit BYJU'S today!
Question: What are the solutions to the quadratic equation x^2 + 9 = 0? Solving Quadratics: In general, quadratic equations can be solved using the quadratic formula. That said, when there is no middle term (no value of x with a coefficient), we can simply solve for the sq...
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百度试题 结果1 题目 Use the quadratic formula to solve these equations.Write your answers correct to 3 significant figures.2x^4+x^2-5=0 相关知识点: 试题来源: 解析 ±1.16 反馈 收藏
Add your answer: Earn +20 pts Q: Why you use quadratic equation? Write your answer... Submit Still have questions? Find more answers Ask your question Continue Learning about Math & Arithmetic What are the methods use in solving quadratic equation? By using the quadratic equation formula or ...
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Question: 1.38. The classic quadratic formula says that the two roots of the quadratic equa tion or+b+c=0 are -btv - dac 2a Use this formula in Matias to compute both roots for a=1, b= -100000000, c=1. Compare your computed results wi...
Use the quadratic formula to find the solutions.( (-b± √(b^2-4(ac)))(2a))Substitute the values ( a=1), ( b=1), and ( c=0) into the quadratic formula and solve for ( x).( (-1± √(1^2-4⋅ (1⋅ 0)))(2⋅ 1))Simplify.( x=(-1± 1)2)The final answer i...