Post a New Question
posted by Anonymous on Tuesday, December 25, 2012 at 6:08pm.
Solve by completing the square. 1. 2x^2=5x+12 2. 5x^2+10x-7=0
x^2 - (5/2)x = 6 x^2 - (5/2) x + 25/16 = 96/16 + 25/16 (x-5/4)^2 = 121/16 x-5/4 = +/- 11/4 x = (1/4)( 5 +/- 11)
More Related Questions