Contact us
Choose a category below so we can get back to you as quickly as possible.
∵(a-2)(b-2)=ab-2a-2b+4=ab-2(a+b)+4,又∵a+b=32,ab=1,∴原式=1-2×32+4=2.故選B.
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.