Find the Angle of Intersection Between $y=x^{3}+4 x^{2}$ And $y=x^{2}$ At $(-3,9)$ To Three Significant Digits

Short Answer

Find the angle of intersection between $y=x^{3}+4 x^{2}$ and $y=x^{2}$ at $(-3,9)$ to three significant digits.