Polynomials 多項式 Quiz:
1. p(ax+b) + q(cx+d)
= pax + pb + qcx + qd
= (pa+qc)x + pb+qd

=

=

2. (ax+b)(cx+d)
= acx2 + (ad+bc)x + bd

= x2 + +

= x2 + +

Ex3C Ex3D RevEx3 解釋 同項(swf)

Exercises: Ex3C Ex3D