Question

Resolva as equações:

x²-3x=0
x²-3=0
x²-5=0

Answer 1

x²-3x=0
X (x-3)=0
X=0
X-3=0

X =0
X =3
...................
x²-3=0
x²=3
X=+- raiz de 3

X= - raiz de 3
X= + raiz de 3
......................
x²-5=0
X²=5
X=+- raiz de 5

X= -raiz de 5
X= +raiz de 5