mr fantastic MHF Hall of Fame Dec 2007 16,948 6,768 Zeitgeist May 23, 2010 #2 Nforce said: How much is x? Click to expand... (x - 3)^2 + x^2 = (x + 3)^2. Expand, simplify and solve for x.

Nforce said: How much is x? Click to expand... (x - 3)^2 + x^2 = (x + 3)^2. Expand, simplify and solve for x.

N Nforce Mar 2010 224 2 May 23, 2010 #3 i know i have to use pythagorean theorem, but i can's solve it. I always get x^2 = 12x

mr fantastic MHF Hall of Fame Dec 2007 16,948 6,768 Zeitgeist May 23, 2010 #4 Nforce said: i know i have to use pythagorean theorem, but i can's solve it. I always get x^2 = 12x Click to expand... x^2 - 12x = 0 => x(x - 12) = 0 => x = 0 (rejected) or x = 12.

Nforce said: i know i have to use pythagorean theorem, but i can's solve it. I always get x^2 = 12x Click to expand... x^2 - 12x = 0 => x(x - 12) = 0 => x = 0 (rejected) or x = 12.