p²(X+Y)²-q²(X-Y)² 因式分解
问题描述:
p²(X+Y)²-q²(X-Y)² 因式分解
答
原式为:p²(x+y)²-q²(x-y)²
=[p(x+y)]²-[q(x-y)]²
=[p(x+y)+q(x-y)][p(x+y)-q(x-y)]
=(px+py+qx-qy)(px+py-qx+qy)