方程、系统和不等式的逐步计算器。 方便的输入和解释！

免费的方程计算器 - 一步步求解线性方程,二次方程,多项式方程,根式方程,指数方程,对数方程。 输入方程即可获得解,步骤和相应图形.

The solve for x calculator allows you to enter your problem and solve the equation to see the result. Solve in one variable or many.

2020年4月3日 · 0.4x等于100解？正确答案是250，0.4=4/10。化简4x=1000。所以x=250。具体的解答过程见附图，请参考附图完成本题解答。

Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor.

$$ax^4 + bx^2 + c = 0 \ \ \ (a \ne 0)$$ 令 $x^2$ 为 $y \ (y \ge 0)$,就变成了一个二次方程式,可以求出它的两个根 $y_1, y_2$。 二次次方程式的根可通过如下方式求出:

Solve your math problems using our free math solver with step-by-step solutions. Our math solver supports basic math, pre-algebra, algebra, trigonometry, calculus and more.

0.4x^{1-1} The derivative of ax^{n} is nax^{n-1}. 0.4x^{0} Subtract 1 from 1. 0.4\times 1 . For any term t except 0, t^{0}=1. 0.4 . For any term t, t\times 1=t and 1t=t. Examples. Quadratic equation { x } ^ { 2 } - 4 x - 5 = 0. Trigonometry. 4 \sin \theta \cos \theta = …

Solve your math problems using our free math solver with step-by-step solutions. Our math solver supports basic math, pre-algebra, algebra, trigonometry, calculus and more.

Solve for x in math means finding the value of x that would make the equation true. To get a variable by itself a combination of algebraic techniques is requiered.