Question

If x²+2 = 3 + 3 = 2/3 then
then prove
rove that
3 x² + 90c=8​

Answer 1

Step-by-step explanation:

x^2+2=3^2/3+3^-2/3 , Add 1 both sides

x^2+2+1=3^2/3+3^-2/3+1 , let 3^2/3=a ,then 3^-2/3=1/a

x^2+3=a+1/a+1=(a^2+a+1)/a , multiply both side by 3 .

3(x^2+3)=3(a^2+a+1)a , put a=3^2/3

3(x^2+3)=3(3^4/3+3^2/3+1)/(3^2/3)

3(x^2+3)