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✍️ This Calculator can solve, not only the equation -2x² - x +3 = 0, but any other quadratic equation. It can solver for real or complex roots.
dxdg=−sin(4−2x)(1+cos2x)+sin2x(1+sin2(2−x)) ... How do you simplify (sinx+cosx)2+(sinx–cosx)2 ? https://socratic.org/questions/how-do-you-simplify-sin-x-cos-x-2-sin-x-...
Mathematica 循环中 例如Do[Solve[2x^2 + i*x^(1/2)==0,x];Print[x],{i,1,3}]我这样写是不对的.但是我不知道如何实现.其实我的问题是如何从解答{x-> -1}中取出数值-1用于下一步计算。我发现 x=x/.Solve[x+1==0,{x}]
Equations : Tiger Algebra gives you not only the answers, but also the complete step by step method for solving your equations |2x-3|=9 so that you understand better
Mathematica中 Solve::解方程的时候输入Solve函数不能得出结果In[12]:=Solve[x^2+2x-7==0,x]Solve::ivar :3 is not a vaid variable.>>请教为什么这样 教材上是这么写的In[1]:= Solve[x^2 + 2x - 7 == 0,x]Out[1]={{x→-1-2根下2}
Tiger shows you, step by step, how to solve YOUR Quadratic Equations -x2-2x-3=0 by Completing the Square, Quadratic formula or, whenever possible, by Factoring
interval notation这里指(-∞，1/2), 用区间表示（而不是不等号）。
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Answer to: Solve for x: (6x - 5)(x - 2) - (3x - 1)(2x - 3) = 16 By signing up, you'll get thousands of step-by-step solutions to your homework...