Find each of the following products:
(x3−y3)×(x2+y2)
(x3−y3)×(x2+y2)=x3(x2+y2)−y3(x2+y2)=x5+x3y2−x2y3−y5
(x3−5x2+3x+1)×(x2−3)
(x3−2x2+5)×(4x−1)
Find the centroid of the triangle with vertices A(x1,y1), B(x2,y2) and C(x3,y3).
Which of the following is a factor of (x+y)3−(x3+y3)?
(a) x2+y2+2xy
(b) x2+y2−xy
(c) xy2
(d) 3xy