一道用英语说的数学题Sketchthegraphofy=4-xandy=x×x+2x,andcalculatethecoordinateoftheirpointofintersection.calculatetheareaofthefiniteregionbetweenthetwographs.怎么用积分算抱歉我门没学过教下

Question

一道用英语说的数学题
Sketch the graph of y=4-x and y=x×x+2x ,and calculate the coordinate of their point of intersection.calculate the area of the finite region between the two graphs.
怎么用积分算抱歉我门没学过教下

Answer 1

intersection:交点（-4,8）,（1,3）这步解方程就行了
计算所围成的面积用积分就成了 结果是125/6
你要把图画出来找到交点
过程我没法给你写 我这没有公式软件 不好意思