Question

if x^2+2x+1=0, then 4x/x^2+5x+1=


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Answer 1

Answer:

Step-by-step explanation:

STEP:1

Factorisation of x^2+2x+1=0

x^2+x+x+1=0                                            

x(x+1)+1(x+1)=0

(x+1)(x+1)=0

therefore,

x+1=0

x=-1

STEP: 2

Substituting x=-1 in 4x/x^2+5x+1

4(-1)/(-1)^2+5(-1)+1

-4-5+1

-8

therefore

4x/x^2+5x+1=-8

Answer 2

Answer:

Step-by-step explanation: