Find the expression whose expanded form is (x–y)(x2+xy+y2).
(x–y)(x2+xy+y2) =x3+x2y+xy2–x2y–xy2–y3 =x3−y3
The expanded form of an expression is (x–y)(x2+xy+y2). Which of the following is the expression?
ABCD is a parallelogram with vertices A (X1, Y1) , B(X2, Y2) and C (X3, Y3). Then the coordinates of the fourth vertex D in terms of the coordinates of A, B and C are