五、方程思想方程思想即将问题中的数量关系运用数学语言转化为方程模型加以解决.方程思想是最重要的一种数学思想,在数学解题中所占比重较大,综合知识强、题型广、应用技巧灵活.例5(南昌市)已知抛物线y=x2+bx+c,经过点A(0,5)和点B(3,2).(1)求抛物线的解析式;(2)现有一半径为1, V. Equations The thought of the equation of thought is to solve mathematical problems by using mathematical language to solve equations. Equation thinking is the most important kind of mathematics. It accounts for a large proportion of mathematics problems, comprehensive knowledge, and questions. Broad and flexible application techniques. Example 5 (Nanchang City) Known parabola y=x2+bx+c, through point A(0,5) and point B(3,2). (1) Analytical formula for parabola; ( 2) The existing radius is 1,