Question
If 'x' = √6, then find the value of (x - 3)² + (x +
3)²Solution
(x - 3)² + (x + 3)² = x² - 6x + 9 + x² + 6x + 9 = 2x² + 18 = 2 X (√6)² + 18 = 2 X 6 + 18 = 12 + 18 = 30
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