Which expression is equivalent to open paren 4 x to the 5th power plus 11 close paren squared ?

Use the square-of-a-sum rule: (a + b)² = a² + 2ab + b². Here, a = 4x⁵ and b = 11, so the expression becomes (4x⁵)² + 2(4x⁵)(11) + 11² = 16x¹⁰ + 88x⁵ + 121. Therefore, the equivalent expression is 16x¹⁰ + 88x⁵ + 121.

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