Respostas

2013-08-26T09:46:12-03:00
1) delta = (14)²-4.1.24 = 196-96 = 100
x = -14 +/- raiz de 100/2
x =-14 +/- 10 /2
x = -2 e -12

2) Delta= (-6)² -4.1.5 = 36-20 = 16
x = -(-6) +/- raiz de 16/2
x= 6 +/- 4/2
x= 5 e 1