Question

Numero somado. De quatro. E multiplicado de 121

Answer 1

x+y=4

x.y=121

x=4-y

(4-y)y=121

4y-y²=121

-y²+4y-121=0

Δ=4²-4.(-1).(-121)

Δ=16-484

Δ=-468

y=(-4+-√Δ)/(2.(-1))

y=(-4 +-6√13i)/(-2)

y`=2+3√13i

y``=2-3√13i

(2+3√13i) + x=4

x=4-2-3√13i

x=2-3√13i

x=2-3√13i  

y=2+3√13i