Question

If x=(3+√8).show that (x2 + 4) = 24
explain the the question question please​

Answer 1

Answer

First calculate x².

x = 3 + √8

x² = 3² + 2(3)(√8) + (√8)²

x² = 9 + 6√8 + 8 = 17 + 6√8 = 17 + 12√2

Now,

x² + 4 = 17 + 12√2 + 4 = 21 + 12√2

You typed incorrect question.