Question

Calcule as raizes da seguinte equação x(4x-1)=3(x+1)

Answer 1

x(4x-1)=3(x+1)

4x^2-x=3x+3

4x^2-4x-3=0

Δ=16+48
Δ=64

x=4+/-√64/8

x'=4+8/8
 x'=12/8=3/2
  x"=4-8/8
   x"=-4/8=-1/2