Question

a) x²+x-2=0 b) x²-4x+5

Answer 1

Resposta:

a)x=-1,0,2

b)x=-5,4,0

Explicação passo-a-passo:

a) x²+x-2=0

x(x+1)=2

x=-1,0,2

b) x²-4x+5=0

x(x-4)=-5

x=-5,4,0