Question

Solve Fast plz give the full method​

Answer 1

Here is your Ans

____________________

$given = > \\ \\ x = \frac{1}{2} \\ \\ = > 2 {x}^{4} - a {x}^{3} + 4 {x}^{2} + 2x + 1 = 0 \\ \\ = > 2 {( \frac{1}{2} )}^{4} - a {( \frac{1}{2} )}^{3} + 4 { (\frac{1}{2}) }^{2} + 2 {( \frac{1}{2} )}^{2} + 1 = 0 \\ \\ = > \frac{2}{16} - \frac{a}{6} + \frac{4}{4} + \frac{2}{2} + 1 = 0 \\ \\ = > \frac{96 - 128a + 768 + 768 + 768}{768} = 0\\ \\ = > \frac{2304 + 96 - 128a}{768} = 0 \\ \\ = > 2400 - 128a = 0 \\ \\ = > a = 18.75$

______________

Follow Me

Answer 2

Value of a is 25

2x⁴-ax³+4x²+2x+1=0

2/16-a/8+4/4+2/2+1=0

-a/8=-1-1-1-1/8

-a/8=-8-8-8-1/8

-a=-25/8×8

-a=-25

a=25

Hope my answer was helpful