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