Question

resolva as equaçoes incompletas

2x²-32=0

x²-3=0

x²-49=0

x²-2x=0

Answer 1

2x²-32=0
2x²= 32
x² = 32/2
x² = 16
x= $\sqrt{16}$
x= + 4
x= -4
_____

x²-3=0
x= $\sqrt{3}$
x= 1,73
_________

x²-49=0
x² = 49
x= $\sqrt{49}$
x= +7 
x= -7
_________
x²-2x=0
x( x -2) = 0
x=0

x-2= 0
x= 2