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

Explore math with our beautiful, free online graphing calculator. Graph functions, plot points, visualize algebraic equations, add sliders, animate graphs, and more.

Graph the line using the slope and the y-intercept, or the points. Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor.

本经验通过函数的定义域、单调性、凸凹性、极限和奇偶性等性质，介绍函数用导数工具画函数y=x^3-4x的图像的主要步骤。 根据函数特征，函数自变量可以取全体实数，即定义域为： (-∞，+∞）。 计算求出函数的一阶导数，结合函数的定义域求出函数驻点，由一阶导数的正负，判断函数的单调性，并计算出函数的单调区间。 如果函数f (x)在区间I上二阶可导，则f (x)在区间I上是凸函数的充要条件是f'' (x)<=0。 函数的极限，即求出函数y=x^3-4x在无穷处的极限。 本题三次 …

f(x)=x^3 ; prove\:\tan^2(x)-\sin^2(x)=\tan^2(x)\sin^2(x) \frac{d}{dx}(\frac{3x+9}{2-x}) (\sin^2(\theta))' \sin(120) \lim _{x\to 0}(x\ln (x)) \int e^x\cos (x)dx \int_{0}^{\pi}\sin(x)dx

Enter the Equation you want to solve into the editor. The equation calculator allows you to take a simple or complex equation and solve by best method possible. Step 2: Click the blue arrow to submit and see the result! The equation solver allows you to enter your problem and solve the equation to see the result. Solve in one variable or many.

Algebra Calculator shows you the step-by-step solutions! Solves algebra problems and walks you through them.

You just have to solve system y=x^3-4x x = y^3-4y by substitution. You get a 9th degree polynomial, and thus there are at most 9 intersections. By substituting we get x = (x^3-4x)^3-4(x^3-4x) \implies \underbrace{x^9-12 x^7+48 x^5-68 x^3+15 x}_{=: p(x)} = 0 ...

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.