User contributions
- 14:45, 13 April 2012 (diff | hist) . . (+311) . . N 1951 AHSME Problems/Problem 49 (Created page with "Two equations can be written: <math>x^2 + 4y^2 = 40</math> and <math>4x^2+y^2= 25</math> Add them together and get <math>5x^2+5y^2=65</math> then <math>x^2+y^2=13</math> Multiply...")
