Math, asked by sp208, 9 months ago

if x^2 + 2x + 4 = 0, then x^4/4 + 8/x -3 = ?​

Answers

Answered by ColinJacobus
7

The required value is -7

Step-by-step explanation:

Given, x^2 + 2x + 4 = 0

x^2=-2x-4

=>x^2/2 = -x-2

=> x^4/4 = x^2+4+4x

=>x^4/4 = (x^2+2x+4)+ 2x

=>x^4/4 = 0+2x, from the question

=>x^4/4 = 2x ........a

Again, x^2 + 2x + 4 = 0

x^2+4 =-2x

=>x+ 4/x =-2

=>8/x = -2x-4.........b

Using a and b , we have

x^4/4 + 8/x -3

=2x -2x -4 - 3

= -7

Answered by rt692568
0

Answer:

103. If

+ + = ,

+

− 3=?

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