Question

determinar as solucoes para a equcao x²-17x+16=0.no conjunto dos numeros conplexos

Answer 1

Δ=b²-4ac
Δ=(-17)²-4*1*16
Δ=289-64
Δ=225

x=-b±√Δ/2a
x=17±15/2

x'=17-15/2=1
x''=17+15/2=16