Jawabanmu

2014-08-17T20:55:34+07:00
A. 2x² + 11 + 15 = 2x² + 26 = 2(x² + 13)
b. 2x² - 5x -12 = (2x + 3) (x - 4)
c. 3x² + 10x + 3 = (3x + 1) (x + 3)
2 1 2