(p+2q)(2p-q)-(p+q)(p-q)
(p+2q)(2p-q)-(p+q)(p-q)
6(p+q)^-2(p+q)
因式分解(p+2q)^2-2(p+2q)(p+3q)+(p+3q)^2
(p-2q)^2-2(p+2q)(p+3q)+(p+3q)^2
p.q.
6p{(p+q)(p+q)}-4q(p+q)
设p、q是两个数,规定p△q=4*q-(p+q)/2
因式分解(2p+q)(8p-3q)-2p(2p+q)
先化简再求值:(p+2q)^2-2(p+2q)(p+3q)+(p+2q)(3q-p),其中p=-1,q=-2
将[(p-q)³-2(q-p)²-2/3(q-p)]/ p-q/3(p≠q)化归为关于p、q的多项式
4(2p+3q)^2 -(3p-q)^2
4(2p+3q)^2 - (3p-q)^2