Question

Resolva a equação |x x|
|5 x| = -6

Answer 1

Resposta:

x    x   = -6

5    x

Calculando o determinante

x*x-5*x=-6

x²-5x=-6

x²-5x+6=0

x'=[5+√(25-24)]/2=(5+1)/2= 3

x''=[5-√(25-24)]/2=(5-1)/2= 2

x=3  ou x=2