Contact us
Choose a category below so we can get back to you as quickly as possible.
(2a-b)的平方(2a+b)的平方 =[(2a-b)(2a+b)]²; =(4a²;-b²;)²; =16a^4-8a²;b²;+b^4 你的好評是我前進的動力. 我在沙漠中喝著可口可樂,唱著卡拉ok,騎著獅子趕著螞蟻,手中拿著鍵盤為你答題!
We and our partners use cookies and other technologies to analyze traffic and optimize your experience. View more info and control your cookies settings at any time in our Cookies Policy.