Question

Preciso daresoluçao da equaçao 7(t+2)²=14/2

Answer 1

7(t+2).(t+2)=7
7(t2+4t+4)=7
7t2+28t+28=7
7t2+28t+28-7=0
7t2+28t+21=0

s= -b/a = -28/7 = -4
p= c/a = 21/7= 3
x'= -1 x"=-3