1.

If x square minus x + 1 is equal to zero then find the value of x cube​

Answer»

Step-by-step explanation:

x²-x+1=0

it is SOLVED by qudratic formula

x=(-b+√b²-4ac)/2a

where a is coefficient of x²

b is coefficient of x and c is constant

so

a= 1 b=-1 c=1

x=(1+√1-4)/2

x=(1+√-3)/2

x=(1+i√3)/2 or (1-i√3)/2

now cube of x

(1+i√3)³/2³

thank you

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