Question

if x=2+2 1/3 +2 2/3 the the value of x cube - 6xsquare + 6x is​

Answer 1

Answer:

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Step-by-step explanation:

Let  213=t  

x=2+t+t2⟹x−2=t+t2  

(x−2)3=(t+t2)3=t6+3t5+3t4+t3=4+6t2+6t+2=6+6(x−2)Replace t3 by 2  

(x−2)3−6(x−2)=6   now expand  

x3–6x2+12x−8–6x+12=6  

x3–6x2+6x=2