a) 3x^2-6x=0x(3x-6)=0x=03x-6=03x=6x=6/3x=2b) x^2-5x=0x(x-5)=0x=5c)4x^2-5=04x^2=5x^2=5/4x=+ou-✓5/4e) -3x^2+2=0-3x^2=-2x^2=-2/-3x=+ou-✓2/3f)x^2+2x=0x(x+2)=0x=0x+2=0x=-2Espero ter ajudado
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a) 3x^2-6x=0
x(3x-6)=0
x=0
3x-6=0
3x=6
x=6/3
x=2
b) x^2-5x=0
x(x-5)=0
x=5
c)4x^2-5=0
4x^2=5
x^2=5/4
x=+ou-✓5/4
e) -3x^2+2=0
-3x^2=-2
x^2=-2/-3
x=+ou-✓2/3
f)x^2+2x=0
x(x+2)=0
x=0
x+2=0
x=-2
Espero ter ajudado