Question

4
$4 {x}^{2} - 5x + 3(x = \frac{1}{2} )$

Answer 1

$4 {x}^{2} - 5x + 3 \\ = 4( { \frac{1}{2} }^{2}) - 5( \frac{1}{2}) + 3 \\ = \frac{ 4\times 1}{4} - \frac{5}{2} + 3 \\ = - \frac{5 + 6}{2 } \\ = \frac{ - 1}{2}$