(x+4)(x+4) = _________
\(x^2 + 8x + 16\)
\(x^2 + 8x + 8\)
\(x^2 + 16x + 16\)
\(x^2 + 16x + 8\)
Detailed Explanation
Use the FOIL method (First, Outside, Inside, Last) to solve. \(x^2 + 4x + 4x + 16 = x^2 + 8x + 16\)
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