Resposta :
x^2.3x = 2x(3x+1) eleimine x, ficará:
3x^2 = 6x + 2
3x^2 - 6x - 2 = 0
delta=(-6)^2 -4.3(-2)=36+24=60
x=6+/-V60 = 6+/-V2^2.15 = 6+/-2V15 ==>x= 2(3+/-V15) ==> x= 3 +/-V15
2.3 6 6 6 3
3x^2 = 6x + 2
3x^2 - 6x - 2 = 0
delta=(-6)^2 -4.3(-2)=36+24=60
x=6+/-V60 = 6+/-V2^2.15 = 6+/-2V15 ==>x= 2(3+/-V15) ==> x= 3 +/-V15
2.3 6 6 6 3