Determine o valor de k para que a equaçao tenha duas raizes x2+(k-1).x-2=0 cuja soma seja igual a -1.... Pergunta de ideia deLalaBebeb

December 2019 1 24 Report

Determine o valor de k para que a equaçao tenha duas raizes x2+(k-1).x-2=0 cuja soma seja igual a -1

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valpinio Vejamos:

Soma=-b/a

-b/a=-1

-1=-(k-1)/1

-1=-(k-1)

k-1=1

k=1+1=2 Resposta.

abraços.

x^2+x-2=0 donde S=-b/a ou S=-1/1= -1 verificando.

Que tal ★★★★

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