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Symbolab is the best step by step calculator for a wide range of math problems, from basic arithmetic to advanced calculus and linear algebra. It shows you the solution, graph, detailed …

2019年2月12日 · Prove this $x^3 + y^3 = (x+y) (x^2 - xy + y^2)$ My attempt Proof - by using [axiomdistributive] and [axiommulcommutative]: $$\begin {split} & (x+y) (x^2 - xy + y^2)\\ &= …

To solve a system of equations by substitution, solve one of the equations for one of the variables, and substitute this expression into the other equation. Then, solve the resulting equation for …

目前问题是求 y^2 + 2 = x^3。 满足条件的实数只有 （5，3），（-5，3）；5^2 + 2 = 27 = 3^3。 所以只要证明一边等于0，就能得出结果。 但是这种方法好像不够强。 放弃了。 0.383^2 +2 …

2013年8月22日 · How to solve the Diophantine equation x2 + 2 = y3 with x, y> 0 ? (x, y are integers.) x=5,y=3 is one solution that can be found through trial and error. There is a standard …

Select a few x x values, and plug them into the equation to find the corresponding y y values. The x x values should be selected around the vertex. Tap for more steps... Graph the parabola …

一般地，y=x^α（α为有理数）的函数，即以底数为 自变量，幂为 因变量，指数为常数的函数称为 幂函数。 例如函数y=x^0 、y=x^1、y=x^2、y=x^-1（注：y=x^-1=1/x、y=x^0时x≠0）等都是 …

Select a few x x values, and plug them into the equation to find the corresponding y y values. The x x values should be selected around the vertex. Tap for more steps... Graph the parabola …

Intersection Number of B = Y 2 −X 3 +X and F = (X 2 +Y 2)3 −4X 2Y 2 using the fact I (P,F ∩ B)= ordP B(F). The key to the solution is that the curve C=V (B) is indeed smooth at P and that a …