Question

answer this question

Answer 1

4 is answer of this question

Answer 2

$3 {x}^{2} + x + 5 = {(x - 3)}^{2} \\ 3 {x}^{2} \ \ + x + 5 = {x}^{2} + 9 + 6x \\ 3 {x}^{2} - {x}^{2} + x - 6x = 9 - 5 \\ 2 {x}^{2} - 5x = 4 \\ 2 {x}^{2} - 5x - 4 = 0$