Question

$x^{2} +3x +2= quero a conta pfv$

Answer 1

x²+3x+2=0

/\=3²-4.1.2
/\=9-8
/\=1

x'= -3+1÷2
x'= -2÷2
x'= -1

x"= -3-1÷2
x"= -4÷2
x"= -2

S={-1,-2}