| X X |
| 5 X | = 0
[X... X]
[5... X]=0
x²-5x=0
Delta=b²-4ac
Delta=(-5)²-4.1.0
Delta=25
x=-b+-RaizQuadradadeDelta/2a
x=-(-5)+-RaizQuadradade25/2
x=5+-5/2
x'=5+5/2
x'=10/2
x'=5
x''=5-5/2
x''=0/2
x''=0
S={5, 0}
x²-5x=0
x(x-5)=0
x=0
ou
x-5=0
x=5
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Verified answer
[X... X]
[5... X]=0
x²-5x=0
Delta=b²-4ac
Delta=(-5)²-4.1.0
Delta=25
x=-b+-RaizQuadradadeDelta/2a
x=-(-5)+-RaizQuadradade25/2
x=5+-5/2
x'=5+5/2
x'=10/2
x'=5
x''=5-5/2
x''=0/2
x''=0
S={5, 0}
x²-5x=0
x(x-5)=0
x=0
ou
x-5=0
x=5