Question

me ajudem a resolver x2+5x=14​

Answer 1

Olá,

x^2+5x=14

x^2+5x-14=0

∆=5^2-4.1.-14

∆=25+56

∆=81

x'=(-5+√81)/2.1

x'=(-5+9)/2

x'=4/2

x'=2

x"=(-5-√81)/2.1

x"=(-5-9)/2

x"=-14/2

x"=-7

Resposta: x'=2 e x"=-7