Question

X(x-3√3)=1 then find x^3(x^3-90√3)

Answer 1

Answer:

I am soory I don't know the answer

Answer 2

$x^{3} [x^{3}- 90\sqrt{3}] = 1$

Step-by-step explanation:

We have $x(x - 3\sqrt{3}) = 1$

Now, cubing both sides, we get  

$x^{3}(x - 3\sqrt{3})^{3} = 1$

⇒ $x^{3} [x^{3}- (3\sqrt{3} )^{3} - 3 \times 3\sqrt{3} \times x(x - 3\sqrt{3})] = 1$

⇒ $x^{3} [x^{3}- 81\sqrt{3} - 3 \times 3\sqrt{3} \times (1)] = 1$

{Since,  $x(x - 3\sqrt{3}) = 1$}

⇒ $x^{3} [x^{3}- 90\sqrt{3}] = 1$ ( Answer )