Question

giải giúp mik vs

Answer 1

b: Tọa độ giao điểm là:

\(\left\{{}\begin{matrix}x^2+x-2=0\\y=x^2\end{matrix}\right.\Leftrightarrow}\left\{{}\begin{matrix}\left(x+2\right)\left(x-1\right)=0\\y=x^2\end{matrix}\right.\Leftrightarrow\left(x,y\right)\in\left\{\left(-2;4\right);\left(1;1\right)\right\}\)