The best estimate would have to be 3.87298334621. 3.87 if rounded to the nearest hundredth, 3.9 id rounded to the nearest tenth, and 4 if rounded to the nearest unit
3x^(2)+4x-3x-5-2=0 3x^(2)+x-7=0 Discriminat= b^(2)-4ac= 1^(2)-4(3)(-7)= 1-12(-7)=1+84=85 The discrimination is bigger than 0 (delta>0) therefore there are 2 real solutions
