Question

solve x(x+2)/
X-1
<0​

Answer 1

Answer:

Step-by-step explanation:

X^2+x+1=0

Compare with QUADRATIC EQUATION

a.x^2+bx+c=0

a=1 b=1 c=1

Roots of the equation =-(-1+ -square root 1-4×1×1)/2

Descriminant =------- sqare ROOT 1-4

Descriminant =sqare root over -3

The roots of the equation are not real and imaginary

They are complex numbers +-- i

x=-( ---1+— i sqare root over --3)/2

___________ii method ________

x^2+x+1=0

x^2+2×1/2×x+1/4+3/4=0

(x+1/2)^2+3/4=0

(x+1/2)^2=-3/4

This quadratic equation has no real roots.

x+1/2=(-3/4)^(1/2)=[(3/4)^(1/2)]i

x=[(3/4)^(1/2)]i-1/2

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