Answers

2014-06-22T21:19:58+08:00
Isubtitute mo yung value ng a,b.c

ito ung formula -b+ positive or negative √b²-4ac over 2a
a=1 b=11c=30

-11 + √11²-4(1)(30) over 2(1)
-11 + √121-120 over 2
-11+ √1 over 2
-11+ 1/2 
-10 1/2
1 5 1