> 数学 >
计算:(b+2a2)(-b-2a2)=______.
人气:492 ℃ 时间:2020-04-07 14:42:05
解答
(b+2a2)(-b-2a2),
=-(b+2a2)(b+2a2),
=-(b+2a22
=-4a4-4a2b-b2
故答案为:-4a4-4a2b-b2
推荐
猜你喜欢
© 2024 79432.Com All Rights Reserved.
电脑版|手机版