分解因式:x3+14x2+49x=______.
x3+14x2+49x,
=x(x2+14x+49),
=x(x+7)2.
故答案为:x(x+7)2.
--- Let’s go shopping first and then go fishing tomorrow.
--- ______. I’ll pick you up at 9.
A.Well, I don’t know
B.You go yourself
C.That’s a good point
D.I’m afraid I don’t agree
某男,30岁。1周前发热,咳嗽,咽痛,热退后一身面目浮肿,舌红,苔黄白相间,脉浮。
治疗应首选()
A.越婢汤
B.防己黄芪汤
C.五皮饮
D.葶苈大枣泻肺汤
E.实脾饮