Question

(x²-x + 1) × ( x² + x-3) + 8.​

Answer 1

Answer:

34

Step-by-step explanation:

Given that..

x=3+8–√…(1)  

⇒1x=3−8√(3)2−(8√)2  

⇒1x=3−8–√….(2)  

Now adding (1) & (2) we get…

x+1x=(3+8–√)+(3−8–√)  

⇒x+1x=6  

Now,

x2+1x2  

=(x+1x)2–2.x1x  

=62–2  

=36–2  

=34 . (Ans).

Answer 2

Answer:

x⁴+x²-3x²-x³-x²+3x+x²+x-3+8 =0

x⁴-x³-2x²+X+5=0

x²(x²-x-2)+X+5=0

x²-x-2+X+5=0

x²+3=0

x²=3

X=1.73