(x^2 + 2y)(x^3 - 2xy + y^3) = x^2(x^3 - 2xy + y^3) + 2y(x^3 - 2xy + y^3)
Now, let's distribute each term:
= x^2 * x^3 - x^2 * 2xy + x^2 * y^3 + 2y * x^3 - 2y * 2xy + 2y * y^3
Now, simplify each term:
= x^5 - 2x^3y + x^2y^3 + 2x^3y - 4xy^2 + 2y^4
Now, combine like terms:
= x^5 + x^2y^3 - 4xy^2 + 2y^4
So, the expanded form of (x^2 + 2y)(x^3 - 2xy + y^3) is x^5 + x^2y^3 - 4xy^2 + 2y^4.
3a(3x - 2y)(3x - 2y)(3x - 2y) or 3a times (3x - 2y) to the third power
Not sure. There is no particular name for x2 and 2xy (both include x) in x2 + 2xy + y2 + y3
x6 - y6 = (x3)2 - (y3)2 = (x3 + y3) (x3 - y3) = (x + y)(x2 - xy + y2)(x - y)(x2 + xy + y2)
(x2 - xy + y2)(x + y)
x3-y3
the equation is A= y2-y2/x3-x2 after that you find the y-intercept by doing, b= y1+y2+y3-A(x1+x2+x3)/3
#include<stdio.h> #include<conio.h> void main() { int x1, x2, x3, y1, y2, y3 ; printf("\nEnter the Co-ordinates of first point(x1,y1)"); scanf("d",&1x, &y1); printf("\nEnter the Co-ordinates of 2nd point(x2,y2)"); scanf("d",&x2, &y2); printf("\nEnter the Co-ordinates of 3rd point(x3,y3)"); scanf("d",&x3, &y3); if( (y2-y1)/(x2-x1)==(y3-y2)/(x3-x2) ) printf("The three points lie on straight line"); else printf("The three points do not lie on straight line"); getch(); }
(x + y)3 + (x - y)3 = (x3 + 3x2y + 3xy2 + y3) + (x3 - 3x2y + 3xy2 - y3) = 2x3 + 6xy2 = 2x*(x2 + 3y2)
What do you mean by "compute"? Do you want to graph it? Factor it? Calculate it's function given a set of points that lie on it? If you're looking to compute the function given three points that fall on the parabola, then I have just the code for you. If you're given three points, (x1, y1), (x2, y2) and (x3, y3), then you can compute the coefficients of your quadratic equation like this: a = (y1 * (x2 - x3) + y2 * (x3 - x1) + y3 * (x1 - x2)) / (x1 * x1 * (x2 - x3) + x2 * x2 * (x3 - x1) + x3 * x3 * (x1 - x2)) b = (y1 - y2) / (x1 - x2) - a * (x1 + x2); c = y1 - (x1 * x1) * a - x1 * b; You now can calculate the y co-ordinate of any point given it's x co-ordinate by saying: y = a * x * x + b * x + c;
X2+Y3+15 All you can do is simplify it.
It makes no difference that the triangle is scalene. If the coordinates of the three vertices are (x1, y1), (x2, y2) and (x3, y3), then the coordinates of the midpoint (centroid) is [(x1 + x2 + x3)/3, (y1 + y2 + y3)/3]. Alternatively, join any two vertices to the midpoint of the opposite side. They (and the third median) will meet at the centroid.
When it is of the form x3 + y3 or x3 - y3. x or y can have coefficients that are perfect cubes, or even ratios of perfect cubes eg x3 + (8/27)y3.