Question
If 'x' = √8, then find the value of (x - 2)² + (x +
2)².Solution
(x - 2)² + (x + 2)² = x² - 4x + 4 + x² + 4x + 4 = 2x² + 8 = 2 X (√8)² + 8 = 2 X 8 + 8 = 16 + 8 = 24
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