Question

Resolva as equaçoes de 2 grau, admitindo U=R:
A. x elevado a 2-5x=0

Answer 1

x²-5x=0

a=1

b=-5

c=0

∆=b²-4.a.c

∆=(-5)²-4.(1).(0)

∆=(-5).(-5)-0

∆=25

x'=-(-5)+√25/2=5+5/2=10/2=5

x"=-(-5)-√25/2=5-5/2=0/2=0

S={ 0,5}

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espero ter ajudado!

boa noite !