Contact us
Choose a category below so we can get back to you as quickly as possible.
150=15×10 則長為15釐米 或者 解設長為x釐米 x(x-5)=150 x²;-5x-150=0 (x-15)(x+10)=0 x1= 15 x2= -10(不符合題意,舍去) 答長為15釐米
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.