x2+(p+q)x+pq=(x+p)(x+q)
问题描述:
x2+(p+q)x+pq=(x+p)(x+q)
20道例题,不要一眼就看出来的
答
X2+px+qx+pq=x2 +qx+px+ pq
x2+(p+q)x+pq=(x+p)(x+q)
20道例题,不要一眼就看出来的
X2+px+qx+pq=x2 +qx+px+ pq