Question

a)2 (x-2)+5x1.10 =3x (x+1)+4

b)2×-1/4+3=×-2/3

Answer 1

A) 4x-4+50x =3x²+3x+4
    4x+50x-3x²-3x=4+4
   51x-3x²=8
   -3x²+51x-8=0 
agora faz o bascara
a=-3
b=51
c=-8 
delta=b².-4.a.c