Answers

2014-10-13T15:09:51+08:00
Since you are given the roots as x = -5 and x= -3 
transposing and equating it to zero you'll have
(x + 5)(x + 3) = 0
x² + 3x + 5x + 15 =0
x² + 8x + 15 = 0
0