Question

please friends solve this

Answer 1

1-2x=0

x= 1/2

$2 {x}^{4} - a {x}^{3} + 4 {x}^{2} + 2x + 1 \\ \\ 2( { \frac{1}{2}) }^{4} - a( { \frac{1}{2}) }^{3} + 4( { \frac{1}{2} )}^{2} + 2( \frac{1}{2} ) + 1 \\ \\ 2 \times \frac{1}{16} - a \times \frac{1}{8} + 4 \times \frac{1}{4} + 2 \times \frac{1}{2} + 1 \\ \\ \frac{1}{8 } - \frac{a}{8} + 1 + 1 + 1 \\ \\ \frac{1}{8} - \frac{a}{8} + 3 \\ \\ \frac{1 + 24}{8} - \frac{a}{8} \\ \\ \frac{25}{8} - \frac{a}{8} = 0 \\ \\ \frac{a}{8} = \frac{8}{25} \\ \\ a = \frac{8}{25} \times 8 \\ \\ a = \frac{64}{25}$

Answer 2

HELLO!!

a = 2.56

HOPE IT HELPS YOU!!