Respostas

2014-04-02T21:38:16-03:00
Mais fácil :)
3x²=48
x²=48/3
x²=16
x=+-√16
x=+-4

Bháskara
a=3 b=0 c=-48
Δ=b²-4ac
Δ=0²-4x3x(-48)
Δ=0-12x(-48)
Δ=0+576=576
X=-b+-√Δ/2a
X=-0+-√576/6
X₁=0+24/6=4
X²=0-24/6= -4
X= +-4