Find each of the following products:
(x2−5x+8)×(x2+2)
(x2−5x+8)×(x2+2)=(x2−5x+8)×x2+(x2−5x+8)×2=x4−5x3+8x2+2x2−10x+16=x4−5x3+10x2−10x+16
Find each of the following products: (x2−3x+7)×(2x+3)
(x2−y2)×(x+2y)
(x2−a2)×(x−a)
(x2−xy+y2)×(x+y)