题目

阅读理解Thanks to a program called Hunger:Not Impossible (HNI), hungry people could have access to fresh, healthy food intheir neighborhood by texting one simple word: Hungry. On one hand. people incharge of the program learn that each year 42 million Americans go hungryincluding 15. 9 million children. On the other hand, grocery stores,restaurants, and food providers throw out 60 million tons of unused food. HNIhad a solution—connectivity. HNI started fundraising and developingpartnerships. Then they make plans with organizations and charities to helplocate people who suffer from food i已知x1，x2是关于x的方程x2-（2m+3）x+m2=0的两个实数根，且=1时求m的值．