Question

resolva a equação x²+x=3x

Answer 1

x²+x=3x
x²+x-3x=0
x²-2x=0
x.(x-2)=0

x=0

x-2=0
x=0+2
x=+2

Answer 2

x²+x=3xx²+x-3x=0x²-2x=0x.(x-2)=0x=0x-2=0x=0+2x=+2