Answers

2016-07-27T15:18:36+08:00
T^2+2t+1+t^2-16t+64=45
2t^2-4t+65-45=0
2t^2-14t+25
a=2 b=-14 c=25
use quardratic formul: -b positive negative square root of b^2-4ac over 2a
0