Question

$15 {x}^{2} - 44x + 21 = 0$
obs: com a conta montada pfvrr ​

Answer 1

Resposta:

Explicação passo a passo:

a=15

b=-44

c=21

x=44+-V(-44)²-4.15.21/2.15

x=44+-V1936-1260/30

x=44+-V676/30

x=44+-26/30

x'=44-26/30=18/30=3/5

x''=44+26/30=70/30=7/3

S={3/5;7/3}