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Originally Posted by awhig
Answer should be 'C' . If you draw the curves , they intersect at two points.
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No! (Draw more carefully!) It's pretty obvious, that the number of intersection points must be odd, because "in minus infinity" x^12 is greater but "in plus infinity" 2^x is greater. (Certainly this is not a proof, the curves could be tangent to each other, for instance, I'm just trying to give you a hint.)
The solution is three (D) indeed, and it takes no time or exact calculation to see this. I think you missed the third intersection point (I mean the one with the largest x-coordinate.)
Cheers, Md.