Question

6.if x square-4x +1 = 0 find x cube + 1 by X cube​

Answer 1

Answer:

52

Step-by-step explanation:

given

x^2-4x+1=0

or, x^2+1=4x

DIVIDING BOTH SIDES BY X,

we get

x+1/x=4

cubing both sides we get,

x^3+1/x^3=64-12

=52