Question

if x is a positive real number and x^2=2 then x^7 is equal to
14
28√2
9√2​

Answer 1

Answer:

x⁷ = 8√2

Step-by-step explanation:

x² = 2

x = √2

x ⁷ = (x²)³ . x

x⁷ = (2)³.√2

x⁷ = 8√2

Answered by Gauthmath