Question

if x square minus one by x square equal to 14 then X square + 1 by x square equal to ?​

Answer 1

Step-by-step explanation:

given, x2+1/x2=14... = (x+1/x)^2 - 2=14

=(x+1/x)^2=16= x+1/x=4----(1)

x3+1/x3=(x+1/x)^3 - 3(x+1/x) [using (a+b)^3 identity]

Substituting (1),

x3+1/x3= (4)^3 - 3(4)= 64-12= 52

ANSWER: x3+1/x3= 52 :-)