The number that should be added to complete the square of x^4 + 64 is?
- 16x^2
- 16x
- 8x^2
- None of these
Explanation
To complete the square for x⁴ + 64, recognize that:
(x²)² + 2(x²)(8) + 8² = (x² + 8)²
So, the missing term to complete the square is:
2(x²)(8) = 16x²
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- None of these
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- 10x = - 3
- 2x = - 27
- 2x = 27
- None of these
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